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Showing content with the highest reputation since 25/10/19 in all areas

  1. 71 points
    First attempt and first clear morning after 2 weeks of bad astrophotography weather. Taken about 2 hrs before sunrise on 07/13/2020 The image still has some startrails from the comet stacking mode in DSS. I've used the comet stacking mode and normal stacking mode and blended both together in Photoshop to get the comet with its starfield rather than startrails. Difficult process to do this manually. If someone knows a method/software that does comet stacking with its starfield, please let me know. DSS failed me on several occasions using comet+star stacking method. Ken Equipment and image detail: Nikon d610 TS72 APO + TS72flat settings: 432mm, f6, iso400, 40min. Different exposures ranging from 30 sec to 5 sec. Tracking: Skywatcher Star Adventurer software: Stacking: Deepskystacker 4.2.2 Processing: Adobe Photoshop
  2. 70 points
    I took a photo of Betelgeuse in February 2019 just because it's a pretty star - Thought I'd take another to see if it really has dimmed as much as everyone says and the difference is very noticeable - (prime focus of a 7" refractor with a focal reducer bringing it to f 5.6. )
  3. 63 points
    I havent posted for a while its so good to finally get going again..... Ive been wanting to image a wide field of M45 for years.... managed to get tenough over the past 4 weeks now it is rising early in the morning.......total 12hrs comprised of 300s, 180s and 60s exposures. Imaged with a 105mm 1.4 Sigman lens @ f2 with an ASI2600 OSC. Cmos Processed in Pixinsight, Photoshop,and lightroom Thanks for looking Peter
  4. 61 points
    Hi all, this has been a tough slog. Starting in August i intended to just shoot Barnard 150 and well i just kept going. I really have no idea how you guys with mono cameras manage mosaics, hats off. Shot over 9 nights and a total of 31 hrs in 150 second subs. Esprit 100, Zwo 071 pro, mounted on an AzEq6 Captured using SGPro, stacked in APP. Processed in APP, PI and PS. Hope you like it. Richard.
  5. 54 points
    Hi everyone Today I woud like show You my longest expose photo. This is very well known OU4 (Outters4) Gigant Squid Nebula. In polish wheader condition I started cathing it at last week od may and finish few days ago. All frames without moon. It is O3RGB composition. QHY695A, Ioptron Cem60EC, TS APO100Q, Chroma O3 3nm, Chroma RGB. O3 47h @1200s, RGB 3h @300s link to full size https://www.astrobin.com/7wcspr/ edit. Sorry, I forgot Negative and starless version full at Astrobin
  6. 53 points
    This Sunday 24th May at 8pm, we are launching the first of an ongoing series of virtual astronomy talks, workshops and presentations at 'StarGaZine'. You can attend StarGaZine events free of charge via the Zoom video communications platform. For our very first event (Sunday 8pm) Steve Richards / @steppenwolf will provide his talk 'Making Every Photon Count: An Introduction to Deep Sky Imaging for Observers'. His beginner-friendly talk will explain the equipment and techniques necessary to successfully capture deep sky targets. After the talk there will be a Q&A session. The following week (Sunday 31st May) Nik Szymanek will provide a talk followed by a Q&A session. After that, we are working on a week long imaging conference with a speaker every night covering specific topics. Dates, speakers and topics will be announced later. Initially the talks focus on astrophotography but, ongoing, we will cover a wide range of astronomy subjects. Why are we launching StarGaZine when we already have StarGazersLounge? There are several reasons but primarily it is because: During the pandemic we cannot have a SGL Star Party. Many regular astronomy society meets are also not happening. The usual astronomy fairs and shows are cancelled. It will compliment and enhance SGL. It will promote astronomy to a wider audience. It will be fun @daz has agreed to be host. @Grant will cover the techy stuff and some general organisation. Ian King will help us find and book speakers. @FLO will cover the costs (i.e. speaker fees, Zoom license, equipment required, etc). If you have suggestions or know someone who might be interested in providing a talk, workshop or presentation, please let us know. As I type this Grant is hosting an outreach event, via Zoom, using the Ikarus Ovservatory setup at Pixel Skies in Castilléjar, Spain. But he'll be along later to explain how to find and access StarGaZine events. We hope you will join us
  7. 53 points
    Made this false colour venus image using a UV data from 9th April and IR data from the 10th April (as I didn't capture any IR on the 9th). As the IR channel is generally featureless I didnt see any issue doing this, just needed to align and resize the IR slightly to match. 90k frames of UV and same IR. 20% stacked for each and synthetic green made from a 50/50 mix. Fullerscope 8.75" newt with APM 2.7x barlow. Altair GPCAM 290m with Baader UV and ZWO 850nm filters. Image resized 200%. North up.
  8. 50 points
    This is 3.5 hours of data with the RASA 8 and ASI2600MC (105 x 2 min at gain 100, -10°C) on a NEQ6. There is apparently quite a bit of dust around M45 that I have not noticed before. I am pleased to see how deep this telescope/camera combination can go in a few hours. A dark site (Bortle 2-3) helps of course. Stacked in PI and mainly processed in PS, as usual. EDIT: I now added a second version of the image, inspired by Olly's reprocessing of his data, where I have sharpened the image more (mainly HiPass filtering and LCE in PS), getting closer to the limit of what the data can support.
  9. 50 points
    I started this back in February 2019 and finished it over the last three beautifully clear nights capturing whilst I slept. In total 13hrs of Lum, 5 hrs each RGB and 14hrs of Ha. Lum and RGB through my Esprit150/SX46 and Ha through piggybacked Esprit100/ASI1600mm mounted on a Mesu 200. Processed in APP, Pixinsight and Photoshop with mild deconvolution of Lum and Ha. The Whirlpool Galaxy, also known as Messier 51a, M51a, and NGC 5194, is an interacting grand-design spiral galaxy with a Seyfert 2 active galactic nucleus. It lies in the constellation Canes Venatici, and was the first galaxy to be classified as a spiral galaxy. Distance is estimated to be 23 million light-years and diameter 76,000 light years. Its mass is estimated to be 160 billion solar masses What later became known as the Whirlpool Galaxy was discovered on October 13, 1773, by Charles Messier while hunting for objects that could confuse comet hunters, and was designated in Messier's catalogue as M51. Its companion galaxy, NGC 5195, was discovered in 1781 by Pierre Méchain. In 1845, William Parsons, 3rd Earl of Rosse, employing a 72-inch (1.8 m) reflecting telescope at Birr Castle, Ireland, found the Whirlpool possessed a spiral structure, the first "nebula" to be known to have one. Also in the image are IC4263 (top right) , IC4277 (below left) and IC4278 (below) Thanks for looking Dave
  10. 50 points
    Hi SGL, I ve been away for quite a while, but its good to be back, and have a picture to post. This is Cassiopeia, a 25 pane 530mm mosaic. I started this in 2016 when I captured the Lum panels, it took building my own remote observatory at Ollys in France before I could capture the RGB, Ha and O3 data. This comes to about 350hrs of LHaRGB data about 240 of those taken in the last year remotely. No noise reduction has been used, and only sharpening on a few certain objects. I re-took about 5 panels in RGB due to stitching and gradient issues. There are a lot of objects in here that I have not seen before. mostly Sharpless objects, but the main defining nebula here is the "Breaking Wave" that Olly coined when we went deep in Ha in this area before. I was pleased to find the "Face On mars" as I like to call it SH2-173 in the mix, along with numerous other objects. I m attaching a small image, and then a bigger attenuated version which I hope you can zoom in to. My friend is setting up the Zoomify option on the website but it may take a few days, so I ve decided to post these in the meantime. I hope you like it, and of course huge thanks to Olly Penrice, Steve Richards for helping with the remote set up, and all the others on the group who helped me trouble shoot the observatory issues. Tom.
  11. 49 points
    We will soon apply a significant update to the SGL platform but before we do we want to remind everyone what SGL is, and is not. This is important because it underpins the way SGL is constructed and moderated. What is SGL? SGL is a positive, safe, friendly online community where you can discuss all things astronomy with like-minded people. Whether you are beginner or professional, visual astronomer or astrophotographer, armchair astronomer or cosmologist. SGL is for you. SGL is not Facebook. SGL does not amplify negative emotion, does not insert dodgy video into your timeline and does not lock you in. There are no fake members or bots. No fake news or click-bait. You are not wrapped in a filter bubble then sold to advertisers (our sponsor pays the bills). At SGL your worth is not determined by how many followers or 'likes' you have. So if you enjoy drama, dissent and controversy. If you enjoy discussing politics and social injustice. If you enjoy constructing carefully worded insults. If you like sharing photos of your cat or breakfast. SGL will not suit you. SGL does however have a Lounge area for non-astro discussion. This is separate and distinct from the astronomy boards. Please help us keep it this way. Best wishes, SGL ADMIN & Moderators
  12. 49 points
    I have not posted many images recently for a few different reasons, one being that I image mostly for myself and another being the really poor weather we have had in recent years means some projects have taken some time to finish and I don't like to post things half baked. But this one is special to me as this is the last image that I will ever take with my faithful Skywatcher 130PDS Newtonian. My 130PDS has served me well over the last 4 years of imaging and is certainly the best astronomy purchase I have made giving incredible value and results for an outlay of only £159 at the time of purchase. It allowed me to place money earlier than would have otherwise have been possible into items such as quality filters, a mono camera and even a mini observatory. But the search for ever better images continues and it has now been replaced by an Esprit 100 and that is quite a long story in itself, but for another time. The 130PDS is not the right tool for capturing an object as large as the Heart Nebula, not least because it cant be done in less than 4 panels with my camera. So I would like to say that this project was planned start to finish but in reality this is a image of the Fish Head Nebula that got out of hand. The image was captured from November 2018 to December 2019 with two panels completed in each season. Camera = ASI1600mm pro Imaging Scope = SW 130PDS Mount = HEQ5pro (belt modded) Filters = Astrodon 1.25 inch 5nm Ha and OIIII Total integration = 40 hours (20 hours Ha and 20 Hours OIII in 600x4min subs) I wanted to have a balanced framing of the nebula so that the eye is not overly drawn to any single part and so the image is slightly cropped to achieve this. I wanted the spike of nebulocity to the left to push into the top corner so as to balance out the Fish Head over to the right, I also wanted Melotte 15 to be as central as possible to provide a focus to the center of the image. The image was stacked in APP and finished in Photoshop CS2. I experimented with Starnet a little removing the stars and replacing them with a shifted color balance. I may well revisit this at a later point but I am all processed out on this for now. Thanks for looking hope you enjoy it. Adam
  13. 49 points
    This project has been on the go for a couple of months. The Ha is very faint but the OIII is ridiculous! Captured using my widefield set up of a Canon 200mm F2.8 lens with an ASI 1600 mono camera. Baader 7nm Ha and OIII filters 198 x 5min Ha and 121x5 min OIII. Captured with SGP, Processed using a combination of PI and PS I knew there wasn't much OIII but I just wanted a few wisps to act like mascara!
  14. 47 points
    Hi guys It took 9 nights between late August and early October, but I finally got enough data to complete the big mosaic of the Cygnus area i'd been wanting to do for ages. In a rare period of good weather, at one point there were 4 clear nights in a period of less than a week. Suffice to say, that was a rough week and by the end of it i was barely hanging by a thread due to the lack of sleep! I'm committing the cardinal sin here of posting late at night after spending hrs of processing (for about the 3rd night in a row) but i think it's finally time to stop looking at it and just post it lol. This was done with an Atik383l+ and two vintage lenses, a Tamron 135mm F2.8 and a Zuiko 50mm F1.8 - total outlay just £60 all riding on a HEQ5-Pro. The 135mm was used at F4.5 to do the 9 panels of Ha. Each panel is 108 mins (9 x 12mins). The 50mm was used at F4 to do a single panel of Oiii and Sii. The Oiii is 7 hrs of 20min subs, and the Sii is just shy of 4 hrs, also in 20min subs. APP used to put the mosaic together, which it managed flawlessly. PS used for everything else. I may end up downscaling it a tad, not sure just right now. Need sleep! Interested to hear what you guys think. CS. ps - It's a big image so be warned. The FOV is about 20 degrees wide!
  15. 46 points
    Hi everyone! Managed to capture 9hrs Ha and 11hrs Oiii (7nm) on this one. SW 80ED DS-Pro ZWO ASI1600MM Pro SW NEQ6 Pro ZWO ASIAir Pro SiriL StarNet++ Adobe Photoshop CC Thanks for looking!
  16. 46 points
    Well and truly blowing my own trumpet here, BBC Sky at Night magazine made one of my lunar images their image if the month for Feb 20! I'm dead chuffed as I've never ever been in print before, not even in the local rag! The image I submitted is this 6 pane mosaic of the waning gibbous that I captured back in Sep. Thanks for looking
  17. 45 points
    These 32 panels from a full frame camera were captured by Yves Van den Broek (VdB on SGL) using his remote rig based here at my place. He stacked the frames and put them into APP, which made a good job of the mosaic geometry but not of the blending. He then gave me the files so I slightly altered the geometry of the APP mosaic to reduce the need for final cropping and then processed the 32 subs. I used the modified APP mosaic as a template in Registar, where I combined the subs over a few days. Further post processing was done in Ps with some existing data, including my Squid Nebula, added for good measure. Yves' rig: Tak FSQ106EDX with focal reducer, full frame QHY CMOS one shot colour camera and Mesu 200 in the Per Freyjvall observatory. A loud thanks to Yves for asking me to get involved with this. Cepheus is an astonishing constellation for the imager and discovering all its hidden secrets while working on this was fascinating. The scale of the dust structures beggars belief. Note that there is no filtered Ha in this image. This is like no OSC camera I've ever tried before. I want one! It's been a while since the days of regular collaborations with Yves and it's been fun. Olly
  18. 44 points
    Sales of astronomy equipment during the pandemic continue to be significantly higher than normal while manufactures struggle with materials shortages and fewer shipping channels. Obtaining reliable ETAs from manufacturers and distributors is understandably very difficult. Even when they do have an ETA, it often changes overnight and it is not unusual for entire shipments to sell out before they dock. We believe this perfect storm will continue at least until a vaccine is found and made readily available so, with this in mind, we have made some changes at FLO that we want to share with you: We have employed five additional staff (two in the warehouse, two at the Helpdesk and one in the workshop). You might already know one of our new staff, Dave Eagle We have invested significantly in stock. When stock is available, we buy it. Lots of it! So whilst stock is scarce our warehouse has never been so full. We have also made a significant change to our website's stock availability information. We now share precisely how many of each item is in stock at our warehouse. (Over 95% of products sold at FLO are dispatched from our warehouse. We rarely drop-ship). Thank-you sincerely for your continued support Alex, Andy, Annette, Ann, Cody, Dave, Grant, Ian, James, Katie, Lisa, Martin, Matt, Rob & Steve.
  19. 44 points
    Just a one minute exposure of comet C/2020 F3 from last night showing an ion tail at least ten degrees long. Samyang 135mm f2 and Canon 700D.
  20. 43 points
    With 15 hours of 8-10 minutes exposures from different locations, this was my last trophy for this season. Captured with my modded D7000 and Meade LX200-ACF on a HEQ5 Pro, guided with NexGuide. With the reducer I used that was approx. 1600 mm FL @ F/8. Ragnar
  21. 43 points
    StDr 1 - a possible planetary nebula in the constellation of Taurus, discovered by Xavier Strottner and Marcel Drechsler in November 2019. This is the first time it has been imaged in colour. It is extremely faint - and so 1800 second exposures binned 3x3 were necessary. Astrodon Blue: 17x300" Astrodon Green: 18x300" Astrodon Red: 18x300" Astrodon Lum: 21x300" Astrodon OIII: 8x1800s bin 3x3 Astrodon Ha: 19x1800s bin 3x3 Total Integration: 20 hours Captured on my dual rig in Spain. Scopes: APM TMB LZOS 152 (6" aperture 1200mm focal length) Cameras: QSI6120wsg8 Mount: 10Micron GM2000 HPS
  22. 43 points
    Here is my first DSO travel report from the south Pacific: A week ago I arrived at Lizard Island (14°27 S, 145° 27´E) for research on their marine biological station until early January. It must be one of the darkest places on earth. Lizard Island is situated on the Great Barrier Reef about 20 km off the Australian coast and this far north in Queensland there are very few human inhabitants on the mainland and no light can be seen there from here. Closest town is Cairns 200 km to the south. I have been here virtually every December since 2002 but for the first time I now brought a travel kit for astrophotography. It consists of a SW StarAdventurer and a 300mm f/4 Canon telephoto lens with an ASI071 OSC camera. Having a cooled camera here is essential. I have once tried some AP here with a DSLR with extremely noisy results since the night time temperature here is rarely below 25°C. I also brought my PoleMaster camera for polar alignment. The whole kit with tripod weight 8 kg. The lens is only 1.2 kg. Focusing a telephoto lens precisely is tricky so I had to invent a microfocuser made from a folded sheet of aluminium cut out from a beer can. I shaped the sheet into a rod that presses onto the edge of the focusing ring by the force of a rubber band. Functioning a a lever it provides both a fine micro movement and fixes the ring so focus does not slip. Even if Lizard Island is close to paradise there are unfortunately also clouds, but so far I have had two relatively clear nights. First night was spent trying to find the very faint constellation of the Octans and its southern pole star. This was not easy for someone used to the northern hemisphere with the bright Polaris, and I had to print out a bunch of star charts just to get some orientation. When I finally found it clouds moved in of course. On Friday night it cleared from midnight until sunrise, and PoleStar helped me do what appears to have been a perfect polar alignment. I then aimed at the Large Magellanic Cloud and collected 145 x 90s of data, so about 3.6 hours, which is rather ok with this fast lens. The StarAdventurer behaved perfectly with no star trails in any of the unguided 90 s subs. So, here is the first result from this adventure, processed in PI and PS on a small laptop screen - I will probably have another go at it when I get back home to my 43" screen. The Tarantula Nebula (NGC2070) can be seen in the upper left corner of the galaxy. Wiki writes: The Tarantula Nebula has an apparent of 8. Considering its distance of about 160,000 ly, this is an extremely luminous non-stellar object. Its luminosity is so great that if it were as close to Earth as the Orion Nebula, the Tarantula Nebula would cast visible shadows.In fact it is the most active starburst region known in the Local Group of galaxies. It is also one of the largest H II regions in the Local Group with an estimated diameter around 200 to 570 pc and also because of its very large size, it is sometimes described as the largest although other H II regions such as NGC 604, which is in the Triangulum Galaxy could be larger.The nebula resides on the leading edge of the LMC where ram pressure stripping, and the compression of the interstellar medium likely resulting from this, is at a maximum. Hopefully I get the chance to add more images to this thread soon - the weather report for tonight looks promising.
  23. 43 points
    After what seems like weeks of poor weather the clouds cleared long enough on Monday night to capture 3 hrs of luminance with my Esprit 150 SX-46 and an hour each of RGB with my piggybacked Esprit 100 ASI1600. I processed the image with a combination of APP (currently using the trial version) and Photoshop, interestingly from the same data APP produced an RGB combination with stronger colour and all integrations had higher SNR and lower FWHM than Pi.. I added in some Ha data in Photoshop that I'd taken this time last year with the Esprit 150 ASI1600 combo.. “Spiral galaxy M33 is located in the triangle-shaped constellation Triangulum, earning it the nickname the Triangulum galaxy. About half the size of our Milky Way galaxy, M33 is the third-largest member of our Local Group of galaxies following the Andromeda galaxy (M31) and the Milky Way. Clearly visible in the image is NGC 604, an enormous star-forming nebula. Spanning almost 1,500 light-years, NGC 604 is nearly 100 times larger than the Orion Nebula in our own galaxy and contains more than 200 hot massive stars. M33 has a relatively bright apparent magnitude of 5.7, making it one of the most distant objects that keen-eyed observers can view with the unaided eye (under exceptionally clear and dark skies). Although a telescope will start to reveal some of M33’s spiral features, the diffuse galaxy is actually easiest to examine with low magnification and a wide field of view, such as through binoculars. It is best observed in October. Although others may have viewed the galaxy earlier, Charles Messier was the first to catalogue M33 after observing it in August 1764. In the 1920s, astronomer Edwin Hubble studied dozens of variable stars in M33, which helped him to estimate the object’s distance and prove that M33 is not a nebula within our own galaxy, as previously suspected, but actually a separate galaxy outside our own.” Source NASA Thanks for looking Dave
  24. 42 points
    This post is essentially an update to one made earlier this month. Demand for astronomy equipment during the pandemic is very high. Higher even than Christmas! But whilst China have reopened, manufacturers are struggling with high demand, materials shortages and reduced shipping channels. A perfect storm! In an attempt to stay on top of the situation 'everyone' at FLO is working overtime. My own working day starts at 5am, seven days a week, and has done for a while. We have also employed two extra full-time people in dispatch (Nathan & Dan) and another full-time person (Alex) for the Helpdesk. Our biggest challenge is how to keep our websites stock availability indicators up-to-date and our customers informed during such a turbulent time. Doing this for Sky-Watcher products is especially difficult. We source most products direct from the manufacturer and hold stock at our warehouse but in Europe retailers must source Sky-Watcher products through a distributor. All communications to/from Synta (Sky-Watcher) are through a distributor. The distributor closed when the lockdown began then reopened with reduced staff. They are working hard in difficult circumstances to catch up but are only now finding how many products sold while they were closed and how little is coming out of China. It has not been possible for them to keep us regularly updated. Normally we practice a duck-on-water approach (calm on the surface while paddling like crazy underneath!) but we are past that. We are predicting it will take China 3-4 months to catch up so I think it important we share this with you (this situation affects all astronomy retailers) and ask you to please continue being patient until supply has caught up with demand. On a positive note. Interest in astronomy is at an all-time high and FLO has never been in such good health with a warehouse full to bursting and more staff than you can shake a stick at. Thank-you sincerely for your patience and understanding during these extraordinary times. Alex, Annette, Ann, Dan, Grant, Ian, James, Katie, Lisa, Martin, Nathan, Rob & Steve
  25. 42 points
    Wednesday Oct 30th. 58N, Achnahaird, NW Highlands, Scotland. Canon 6D MkII, Samyang 14mm. VSDC editor. Music - Storm Horizon by Lee Rosevere. Best in darkened room with the volume up...
  26. 41 points
    Hi all, I can't believe i even got an image given the conditions for rgb imaging. No astro dark, quite a low target and an average 70% moon over the two nights. I just recently set about collimating the Epsilon and i think the increased sharpness from decent collimation shows. It's still off in the upper corners so more tweaking required. I wonder is it tilt i'm looking at or spacing. So this is 5 hrs gathered over the last two nights 100*180 second subs with the Asi2600mc through a Takahashi Epsilon 130 Mounted on an AZEQ6 Sequence generator pro for the image acquisition. Processed in APP, PI, and PS Richard. New Original
  27. 41 points
    I have imaged the Rosette Nebula 3 times at 3 differnt focal lengths (318 mm, 480 mm and 700 mm). I managed to work each idata set into a version I could live with (after much time!). Each image consists of 14 hours, 24 hours, 13 hours respectively. I wondered what would happen if I combied them all into a 51 hour image. So, becuase I do not know how to insert higher resolution data into lowere resolution widefield data (Any advise on how to do that would be very much appreciated). So, I registered all data to the smallest FOV (which eliminated the need to crop the combined image), combined the 3 images,then inserted the lum of the highest resolution image (700 mm)-- Well--here it is. I do miss the wider FOV, but still a satisfying endeavor.
  28. 41 points
    Rossette Bok Globules with Leaping Puma now in Colour. I started this on Dec 10th and finished on Friday night. 4 x 15 mins in Ha + 6 X 10 Mins in Oiii, captured with my Atik 460EX CCD & Meade 127mm F7.5 triplet refractor. Guided, captured, stacked & stretched in MaximDL, combined and processed in Photoshop.
  29. 40 points
    This has been a labour of love, 2 full size panels and 2 small corner panels. I am sure there are a few things wrong with it, but I have had enough of it now.A few wasted attempts when the Samyang was orientated differently leaving bits missing. Total imaging time for the whole project 15hours 17.5 secs (not counting abortive attempts to line up the last bit!!! Atik460EX and EFW2, Samyang 135mm @ f.28 (Finally sorted the focus) Starnetted version. (Starnet won;t work on my computer and some kind soul offered to do it for me - I put the star back in myself.
  30. 40 points
    Hi all. New camera arrived on Friday morning and would you believe it the forecast was clear for Friday and Saturday night. Camera is an Aps-c 26mp 16 bit. It has an internal dew heater with 3 settings high/medium/low and so far so good i cooled to -10 without any sign of dew or frost on the sensor and it was very humid here over the weekend. I managed to gather 136 frames over the two nights at 240 seconds a frame. I used a gain of 0. Esprit 100 mounted on an AzEq6 I'm struggling with calibration in APP at the moment so no flats/darks/bias. My darks seem to adding a blue cast to the image. Not the cameras fault as i had the same issue recently with my 071. Richard.
  31. 39 points
    Hi all, Last week I've put together some of my data made the last couple of months to compose this bi-colour image of M27. Quite tricky to proces due to the high dynamic range of the object, quite a pain to tease out the faint outer details without making the image look to forced. I started the processing job from scratch a couple of times, but settled with this version for now. The h-alpha data was acquired from my heavily light polluted backyard, the o3 data I acquired during an astro holiday in Southern France (Provence) under pitch black skies late August. Thanks for checking them out. Regards, Pieter Some details of my gear: Scope: 10" f/3.8 homebuilt Astrograph with 3" Wynne corrector CMOS: ASI-1600 MM Cool (-10°C) Filter: Astrodon 5nm h-alpha / Baader 4,5nm o3 Exposure: 24 hours in 5min subframes (15 hrs h-alpha / 9 hours o3) Mount: Mesu200
  32. 39 points
    Hi. This data was captured over 4 nights in the last week of March. Image is comprised of ; 50x Lum, 1x1 900s 15x ea. RGB, 2x2 225s 10" Newt f4.7, EQ8, Atik 460ex with Astrodon LRGB. Thanks for looking. =]
  33. 39 points
    M1 - The Crab Nebula Introduction The Crab Nebula in the constellation of Taurus is a supernova remnant (designated SN 1054) from a star that went supernova in 1054 and was originally observed by Chinese astronomers who recorded the event in some detail, describing it as a ‘guest star’. Their records show that the star shone approximately four times brighter than the planet Venus and was visible during daylight hours for 23 days. The nebula wasn't officially recorded until 1731 when it was observed by the English astronomer John Bevis and added to the Messier catalogue in 1758. We have William Parsons the 3rd Earl of Rosse to thank for its common name following his observation and subsequent sketch of the nebula in 1840 that looked rather like a crab. During the summer of 1967 a U.S. Air Force officer, Charles Schisler,who was on radar duty at the Clear Air Force Base in Alaska noticed a fluctuating radio source. Over the course of several days Schisler noticed that its position coincided with that of the Crab Nebula. Unfortunately, Schisler’s findings went unpublished but were unearthed in 2007. In 1968 Puerto Rican astronomers discovered the same pulsing radio source and it was determined to be a pulsar, a rapidly rotating tiny star flashing about 30 times per second. Now known as the Crab Pulsar this is a neutron star (NP0532) 100,000 times more energetic than the sun and was the progenitor of the nebula. Because of its energy and relatively recent (in cosmology terms) appearance, the nebula has been the focus of many measurements and the filamentary expansion of the nebula is detectable in many pairs of high resolution images captured more than 20 years apart. I have struggled to capture all the Ha data that I wanted for this image as the appalling weather during much of January and February has put a severe limit on my activities but I did capture a pleasant amount of the OIII data which shows some lovely detail in just a mono image and is included below for reference. With the object now setting on my local horizon just before 02:00 and no letup in the poor weather in sight, I have decided to call it quits for this season and just process what I have got! Image Stats Mount: Mesu 200 Telescope: Sky-Watcher Esprit 150 Flattener: Sky-Watcher Esprit specific Camera: QSI 683 WSG-8 Filters: Astrodon 3nm Ha, 3nm OIII Subframes: 16 x 1800 sec Ha, 18 x 1800 sec OIII Total Integration: 17 hours Control: CCD Commander Capture: MaxIm DL Calibration, Stacking and Deconvolution: PixInsight Post-Processing: PhotoShop PS3 Location Constellation Taurus RA 05° 34' 20.7" DEC +22° 00' 39.9" Distance ~6500ly Edited to show the correct date of the Puerto Rican astronomer's discovery of the pulsar thanks to @ollypenrice who kindly pointed out an ambiguity in the text that I consulted during my research on the write-up for this post!
  34. 38 points
    Here's my first processed image using the ASI6200 with my FLT98. I've binned it 2x2 in software as little real resolution is lost. It's a centre crop to just show the galaxy. L = 3.9 Hrs total at gain 0, RG and B = 1.6 Hrs total each at gain 100 (3.2 x actual gain), and HCG mode. Sky brightness -21.34 using Unihedron. Processed in Startools. Small final adjustmests in Photoshop. I also tried blending in some Ha to Red but it just made the red patches brighter without really adding much so I left it out. Click for full size. Alan
  35. 38 points
    M16 (or only what fits my sensor). SHO Hubble Palette version Sii 20x600s Ha 21x600s Oiii 23x600s This type of image is something i'm loving to do. Big targets captured with a huge focal lenght. For this image was 2050mm FL. The C11" Edge HD has a great corrected field and no crop is needed. Astrophysics CCDT67 do the job puting telescope in a faster f/7 ratio and no distortion applied. It's not so easy in this FL to run 600s subs in a intermediate mount like AZ-EQ6 with 70% payload reached. I had time to play side by side with the famous Hubble version!
  36. 38 points
    The rhyming was completely unintentional! However, I feel like I've processed this to death by now! A very tricky target, where pulling detail from one region can mean overdoing another. I've left it with a more "ethereal" and glowing look, rather than chasing after the intricate detail that is no doubt present there. Maybe I'll come back to it later at some point. Equipment: Atik 490EX Atik EFW2 Chroma LRGB filters Atik OAG Primaluce Lab Esatto 2” Robotic Focuser Celestron Edge HD 8" Celestron 0.7x Reducer for Edge HD 8" Avalon M-Uno Pegasus Ultimate Powerbox Intel NUC Mini PC L: 600 x 60s = 10 hours R: 130 x 120s = 4 hours 20 mins G: 130 x 120s = 4 hours 20 mins B: 130 x 120s = 4 hours 20 mins Dark, flat and bias frames applied Processed in AstroPixelProcessor & Pixinsight Bortle 5 skies Major credit to APP for processing the data from multiple nights in a painless workflow without skipping a beat!
  37. 38 points
    My first attempt at NGC3718 which lies at a distance of about 49 million light years from Earth. It's a very unusually looking galaxy, featuring a twisted dust lane in the central region. To the right you can also see the companion galaxy NGC3729 which, occurring to radio measurements, appears to be interacting with its larger partner. At the top of the image, Hickson 56 can be seen, a grouping of five small galaxies that are estimated to be about 390 million light years away. The LRGB image represents just under 16 hours and was taken with my Esprit 150. LIGHTS: L: 35, R:23, G:20, B:16 x 600s, DARKS:30, BIAS:100, FLATS:40 all at -20C.
  38. 38 points
    Well, I need a lot more data for this one! Anyway, here is a try at bicolour image of Simeis 147 - the Spaghetti Nebula. 67*5 minutes of 3nm Ha and 27*5 minutes of 3nm O3. Samyang 135/2.0 lens @f/4. ZWO ASI1600MM-Cool
  39. 38 points
    Hi all, one of my Mercury transit image's has made both the British Astronomical Association's December journal and the Mercury and Venus section news letter. Really chuffed, never made print before, lol.
  40. 37 points
    Here's my latest effort, NGC-281 The Pacman Nebula. At approximately 9200 light years away it's quite a large beastie covering around 40 arcmins. It was discovered by E. E. Barnard way back in 1883. Total integration time was 900 minutes even split between Ha, Oiii and Sii. All processed in Pixinsight.
  41. 37 points
    Hi everyone. Thanks for looking. I know we're inundated with Mars pictures at the moment but I've not seen buckets of time-lapse and this marks a significant personal best for me so I really wanted to share it. I've not had seeing this good for a long time, especially with a planet this high above the horizon (I'm looking at you Jupiter & Saturn.....). Only 12 frames spread across ~1 hour, but nice to see some movement. One single still as a bonus too Edit to add acquisition & processing: Skywatcher Skyliner 200P reflector (off my dobsonian), 1200 mm, unbranded 3x barlow for 3600 focal length, f/18 Skywatcher NEQ6 Pro mount ZWO ASI120MC-S - gain 33, 20 ms exposure, 2000 frames per video Each video recorded with 5 minute spacing. 12 recorded in total. Stacked in Autostakkert 3, best 30% of frames. Wavelets, colour balance, and tweaks in Registax 6. GIF assembled in Photoshop with a few final contrast and levels tweaks.
  42. 37 points
    Hi Starjunkies! I have been playing with my Samyang 135 for a few months now and have been really enjoying the wide field view it allows. I thought I’d have a go at the Spaghetti Nebula ( Sh2-240 or Simeis 147) In Taurus just below Auriga It’s a dim target from my city skies and the Oiii is going to need a lot more data to bring it out but I can see the promise of something good with enough patience and some luck with the weather. here is the result so far... It’s just over 4 hours Ha and Oiii mainly 5 and 6 min subs any tips on the Oiii subs or processing would be welcome. Thanks for looking! Bryan
  43. 37 points
    On holiday in the Eifel in Germany and hoping for clear nights, but unfortunately it seems that most of the times it's clouded and lightning in the evening. So I already gave my hopes up a bit when yesterday evening I noticed it was clearing up. Against my feeling I decided to just build up the equipment and see what would happen. Somehow I was lucky and while there was lightning in the distance the sky kept clear right over my head until about 4 in the morning. So I decided to work on some dark nebulae as they are impossible to image from my home location. I used my setup using the Spacecat and Nikon D810a with an Asiair controlling everything. This works really great, except for a few times the guiding just stopped without a reason, and so I was able to catch in total 29x300s of images of LDN 1235/1251. LDN 1235 is also known as the shark nebula but somehow this image makes me think of a shark lurking under water to catch the swimmer (LDN1251) at the surface. During the imaging I took time to enjoy the Milky Way shining over me and see some nice details even with the naked eye. During the night quite a lot of Perseids were visible, sometimes very quick and shortly visible, but also a few that left a nice trail. One of the photos was also photobombed by Elon Musk's Starlink satellites. I have attached this raw image to show what it looks like. This also gives an idea of the raw data of a single 300s image that I used to generate the final image. It's always nice to see the power of image stacking The trails are luckily easily to remove using the proper algorithms, but I do understand the annoyance when there will be 12.000 of them in the sky. But that's something luckily they are working on to make them not visible from the ground. Thanks for watching and I hope for a few more nice nights to get even more detail out of this image in the coming nights.
  44. 37 points
    I have been at the lookout for a wide field scope (what some people call astrographs) and this spring I came across a nearly unused RASA8, and after 6 months waiting time, due to the virus situation, I finally received an ASI2600MC - an APS-C sized cooled OSC with relatively small pixels (3.76 µm) that kind of fit the 400 mm FL of the RASA8 (ca 2 "/pix sampling). As I allready had my two obsies filled up with other scopes I decided to spend the summer building a third obsy for the RASA to put on my long-time retired NEQ6, my first mount bought in 2014 when I started my AP adventure, but having been laying in a closet for the last five years, beeing replaced by an EQ8 and a Mesu in my other obsies. Up here astrodarkness started a few days ago, and on Saturday I could finally get the first light out of the RASA and ASI2600. I thought I would go for something simple, at least something I could easily find with the NEQ6 and hand controller: M31. I have to say I am very impressed with both the scope and camera. The collimation of the RASA was spot on (round defocused stars) and it maintained focus all night, although all night here is now only three hours. I am equally impressed with this new ASI camera. As promised there is no amp glow so no need for darks. There was also virually no vignetting by the RASA8 although it is stated to perform best up to an image circle of 22mm. The diagonal of the ASI2600 is 28mm. However, the stars in the corners were a bit elongated, probaly due to minor tilt, but trying to fix that on an f/2 telescope could be quite challenging and it will at least not be my first priority. Andromeda fitted with margin so I could crop away the edges. I don't think anything I have set up to do in AP has been as smooth as this. Fortunately I found that Baader make a 7.5 mm T2 extension that is what is exactly needed to fit the ASI2600 to the T2 adapter of the RASA to get to the 29 mm chip distance. The ASICAP program I use for my older ASI cameras did not work with the 2600 but I soon found out that there is a new ASICAP hidden within the new bundle called ASIStudio. Focus was easy and it kept all night - I have heard that about the RASA before (like on Chuck's Astrophotography on Youtube). So my conclusion is that the RASA8, even being an f/2 scope, which is supposed to be extremely tricky to use, is very easy to get working. I think that bad rumour may come from the Hyperstar attachement that you can fit to SCT scopes, but the RASA is dedicated to this and apparently hardly ever needs collimation. Olly @ollypenrice, may have a comment? My only complaint so far is the star shapes that may not impress pixel peepers (including me) but I think I can improve on them by organizing the two cables to the camera in a curved form - I am trying that out tonight on M33 (EDIT: It worked, se my M33 post). So, enough rambling about the RASA, here are my first 90 minutes (180 x 30 seconds at gain 100) aquired with the RASA8 and ASI2600. No flats (I did take some but it looked better without) and no darks (not needed with the ASI2600). Stacked in PI and processed in PS. I also tried 70 x 60 seconds at gain 0, and it looked similar but not really as good. I should make a thread about the obsy build - I had to go to plan C before it worked out. Cheers Göran EDIT: at the bottom I added a non-cropped version including both the gain 0 and gain 100 data, so totally 160 minutes and a bit more dust and core details.
  45. 37 points
    We announced the IKI (Ikarus Imaging) observatory project at the IAS show at the weekend but wanted to share the news here publicly with you all as well. The IKI Observatory is going to be a remotely hosted astronomy setup in Castilléjar, Spain at https://www.pixelskiesastro.com/. FLO / Ikarus Imaging are sending out a setup in partnership with Optolong Filters and Starlight Xpress. The projects purpose is to provide a community based remote setup that we can collaborate on here on SGL - the data will be made publicly available free of charge and the targets will be chosen here on the forum. Time will be dedicated to scientific projects as well so we will be looking for suggestions for how we can use this and make it available to you all. The project will also be used to test and show case equipment so we anticipate swapping bits and pieces around every so often. Here is the list of what is going over to Spain shortly: StellaMira 104mm ED2 Triplet Refractor & Dedicated Flattener 10Micron GM1000 Mount Starlight Xpress 694, Lodestar X2, OAG and Filterwheel Optolong LRGB / SHO 31mm Filters Optec Flip-Flat Lynx Astro Dew Controller & AstroZap Dew Heater Tapes Astromi.ch Meteo Station Lakeside Astro Motor Focus Controller Pulsar Observatories Pier Software - we are intending to use Sequence Generator Pro but we may trial other solutions as well. We are expecting to to send over the equipment in the next few weeks and from there it will need to be setup and configured. We then plan to spend 2-3 weeks testing everything and ensuring all is well before we start making data available and accepting suggestions for targets / projects. This is a new project, so things may need to be tweaked and changed but we welcome any thoughts / suggestions you all may have and hope this becomes a valuable community resource Cheers, Grant (on behalf of FLO / IKI)
  46. 37 points
    Thanks to our friends at @FLO, I can now introduce you to Tessa, the Takahashi TSA 120. She was delivered this afternoon and weighed in at 5.7 kg. She's 28-inches tall. Her Tak tube ring and 7 x 50 finder will arrive another time, so she's kitted out with temporary tube rings and a Tak 7 x 50 finder from another scope.
  47. 37 points
    I may be pushing the limits of the theme with this image. I’m justifying it on the grounds that transits are themselves a demonstration of celestial motion. The Jet adds a sense of motion, although not celestial. Finally, I rarely have anything worth submitting to the imaging challenge so didn’t want to miss this opportunity Photo taken with a SkyWatcher Equinox 80, TS Optics Herschel Wedge, 9mm Baader Genuine Ortho and iPhone 8. A very lucky shot taken from my back garden. The image is the moment as I caught it. Only processing is adjustments to exposure and contrast levels using iOS’s inbuilt editor. I’ve included the video of the full Live Photo too. IMG_0318.mov
  48. 37 points
    A number of customers have expressed concern for us. Asking if we are okay. If we are affected by the Coronavirus outbreak. The situation has caused us some logistical headaches but nothing we cannot handle and sales remain good (astronomers know they are unlikely to catch anything worse than a cold while in their garden at 2am). Stock at our warehouse is good, the wheels are turning again in China and our plans to introduce new products (lots in the pipeline this year!) are unaffected. If one of us were to catch the bug (there are ten of us at FLO) plans are in place to ensure we continue dispatching orders to customers. We are in good health. So too is Stargazerslounge, Clear Outside and Astronomy Tools. We hope you are also well and that you, your families and colleagues are unaffected. Thank-you for asking Annette, Ann, Grant, Ian, James, Katie, Lisa, Martin, Rob & Steve.
  49. 37 points
    I lucked out with this jet passing across the face of the Sun as I was taking photos of the Mercury transit on my iPhone. I believe the jet is based at RAF Lakenheath. I fiddled a bit with exposure and contrast but other than that it’s as is. Had a really great afternoon observing and taking photos of this event. Photo taken with a SkyWatcher Equinox 80, TS Optics Herschel Wedge, 9mm Baader Genuine Ortho and iPhone 8.
  50. 37 points
    Quick one from last night, looks like clouds are now set in for while. 6.5 hours, Esprit 80, 1600mm. Full res - https://www.astrobin.com/m9wdxp/0/
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