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Showing content with the highest reputation on 22/02/15 in all areas

  1. 11 points
    Three days ago I received my Skywatcher 80ED and of course there has been thunderstorms every evening since . Anyway, today I took a 30 minute chance to try it out ant to say I am impressed would be a great understatement. I pointed it at the Carina Nebula (NGC 3372) and even though I had to stop because the clouds caught up with me I am happy as can be. Wonder what will happen, when I actually get good conditions. 56 frames (30sec, ISO3200) - resampled to 50% and cropped to 1080p.
  2. 9 points
    Hi, A very clear night here and slightly unusual the seeing got better as the night rolled on, it usually goes down hill after 10:30pm. I didn't start until 10pm and finished around 11:30pm as I was after the GRS in the centre of Jupiter. This was the last run from 23:29, 7,500 frames in each colour (RGB), 20% stacked and then de-rotated. Sharpening was done in Astra Image using Lucy Richardson deconvolution. C11, 2x barlow & ASI120MM as normal. Several more to stack on different frames rates, FoV and gain. Robin
  3. 8 points
    Had some fun last night even though it was bitter out. Anyway been playing with my images in pixinsight and starting to understand it a little, so done colour calibration and a bit of stretching, I get lost when saving TBH and for this I saved it as a JPEG so prob lost data etc and need to figure it out more, Anyway this is the result, I look at it as a practise run untill I start on nebulas etc, edit just noticed the file is nearly 20mb so no idea whats happend there
  4. 7 points
    ORION. This is a marathon O'Donoghue-Penrice production owing more to Tom than to me. Tom began the luminance and Ha in Spain four years ago using one Tak 106N/Atik 11000. We then set up the dual Tak rig here and carried on, finishing the colour and Ha acquisition a couple of weeks ago. (Running three Taks and three full frame cameras we collected 24 hours of data in two memorable nights!) Tom did the stitching of the part-stretched data and handed a copy over to me, so the final processing here is mine though Tom's own version is in the pipeline. Higher resolution data has been added from the TEC 140 to enhance M78, the Horse, Flame, Running Man and M42. It's a thirty panel mosaic weighing in at 1.03 Gig in Tiff format and covering nearly 270 million pixels. A full size print would be nearly 8 metres high, which is the whole point, really. We'd like to find a corporate buyer or museum interested in funding such a vast print. Exposure time is over 40% longer than the Hubble Deep Field at about 400 hours (AKA 1.44 million seconds or just over 16 days. ) Thanks also to Yves for the use of his camera when we had three Taks on the job or when mine was tied up on the TEC. We cannot link to a very large version because of the risk of theft so this is little more than a thumbnail to give the idea of the beast. We're sorry about that but with so much time invested we have to be careful. At full size M42 alone fills the screen. Just to reiterate, Tom's contribution exceeds mine on this. We hope you like it. Tom and Olly Link to a bigger one here: http://ollypenrice.smugmug.com/Other/Best-of-Les-Granges/i-LgK642h/0/O/ORION%20400%20HRS%20WEB.jpg
  5. 7 points
    What a night last night...managed to grab enough to process this...although I will probably grab better red and green subs. I really had to work hard to make it work...Surprisingly the IFN in the blue channel was the strongest...but the red frames were captured with variable conditions in between rain showers. Still not convinced there is much in the way of colour in the IFN itself....but I've come this far so I may as well try for some better Red and green data. Total 28hours captured using 30min subs. Thanks for looking
  6. 7 points
    Last night's Moon imaging - ED120APO and Canon 1100D for the earthshine picture. The main picture is a four pane mosaic using the ASI120mm mono. Processed in AS2 and Astra image for L-R deconvolution. The Earthshine picture is a stack of 40 x 2 second exposures, the main image is made from 1000/2000 frame stacks: Click thumbnail to get full size:
  7. 6 points
    Blimey.... this one has been dragging on since the new year - Jan and Feb really hasnt been kind in terms of clear sky (and moonless sky). But, last night I was able to get out there and replace a lot of the moon damaged data, not all of it - but its an improvement on what it was. Ever since starting AP, Ive wanted this image - but I know its by no means over. Still much to do in tems of data, it probably needs another 5 or 6 hours along the bottom. Once its complete im thinking of rolling the data over for next year and try getting some serious time on target (2.5hr per pane isnt enough tbh). A tricky blighter to process too, much to consider as you stretch the image - layer masks for the M42 core, Flame and Alnitak were required. I quipped a while ago about me still doing this at SGLX, looks like it might turn out to be true! 2.5 hours (in 10 and 15min subs) x6 panes, 2x2 bin 130pds, NEQ6, Atik 383L+ Thanks for looking After I had guided Orion as far as I could, I switched over to M106 for an hour before packing up: (6x600)
  8. 6 points
    Hi Every one ,Managed to grab some subs of a old favourite of mine, I set the gear up as quietly as possible so the clouds didn't hear me, but 1 hour into a 2 hour session the mist came down. 12 x 5 minutes , 8 inch cf quattro, Qhy8l at -20 on top of a eq6 pro Just pleased to get out and catch some photons. Processed in PI Thanks for looking Paul much larger https://www.flickr.com/photos/kazastrophotos/15993410494/sizes/k/in/photostream/
  9. 5 points
    Apologies to SGL'ers for essentially "cut & pasting" the CN text I've just posted here...I do think SGL'ers deserve their own thread comments but I'm tired & pushed for time here, so only a few alterations to that thread on Cn if you've just been there..! Hi all - spent a couple of nights down in the Mallee trying to find a bit of clear air.....the forecasts looked good but being brutally honest the seeing was nowhere near as good as BoM or SkippySky suggested - not that we place terribly much credence in any forecasts anytime tbh..! And just to be clear about things like "great air" etc that were bandied about on CN let me be frank herein - naturally all these appraisals are "relative" to each & every one of us...but there was no way whatsoever that the last 2 mornings qualified for anything more than "barely passable" seeing - I think we've been around long enough to know our own situations to a reasonable degree! Ok - with that "off my chest" (and I think it IS relevant when appraising the "possibilities" with this new camera) we were pleasantly surprised with the outcome on Saturn: Jove is a bit of a dog down here at only 38-39° & requires quite extra-ordinary seeing to deliver decent outcomes - love to shoot up North for a week or 2 but we're broke & I can't keep on using Pat's lappy constantly, so pennies are sort here..! Thus getting a decent Saturn with plenty of surface detail in very pedestrian seeing is quite an accomplishment & suggests this camera is a "go-er"...we've managed said with the 120MM-S before but without nearly as much histogram control that the software gain gives us with the 174MM. I have a lot more experimenting/investigation & queries re this camera, plus the new FireCapture beta program used, but I think the preceding paragraph is a good valid observation for starters... Of note is the fact that Pat's Dell is only a standard duo-core (with hyper-threading, thus acts like a 4-core to a certain degree) with a standard HD - we switched off the Wi-Fi & disabled Norton AV, cleared all surplus data off the drive & had no trouble keeping up the FPS...even at 200fps using 512X440 ROI on Jove. As said the Jupiter caps weren't worthwhile but the fps with Pat's lappy showed that this machine could take it...I want a super-fast replacement to my old dead lappy - which was a "fast-un" - but this works in the meantime! If we opened WinJupos etc during captures the FPS saved did lag behind the capture rate but caught up again pretty quickly before the avi finished its' set time-span.....so it looks like you don't necessarily need the fastest machines out there. We had only a couple of spots on the camera window which were most likely the result of me having the covers off for a lot of time trying to get an optimum imaging train set-up at short notice: seems like ZWO have done some work there over time :waytogo: ...I certainly don't think the (almost) 10 metres f/l was ideal in the conditions but that must count as another plus for the specific image... I'm making up a new imaging train & still want variability in the arrangement but think I might have an answer... Anyway, here's a Saturn with promise, plenty of bright spots visible on the disk & whilst I'd "love" some Jovian opportunities further North atm that's not going to happen...and in many ways surface detail on Saturn is much more demanding than great Jovian resolution so we're pretty satisfied with our first efforts - but a whole lot more trialling & also investigations/queries to be done! A big "thank you" to Sam at ZWO - without his generosity this would not be possible..! :waytogo:
  10. 5 points
    Last nights conditions from my dark site were a little challenging for a number of reasons which I will come to. Whilst seeing conditions for observing Jupiter were excellent, I wanted to explore a few nebula and later target some galaxies. For the first couple of hours unexpected cloud came and went making it a bit difficult, though much later it cleared completely. NGC 2174 The Monkey head nebula was easy enough to pick up but close by NGC 443 The Jellyfish was not. I struggled a bit with the Flame in Orion though periodically M42 and M43 were spectacular as usual. I also took a look at M97 Owl Nebula, again nice and easy to observe. I have made a few attempts for B33, each time becoming more accustomed to the star pattern and the profile in which to look for as well as what to keep out of the field of view and so on. I also know how challenging this can be. Feeling that I had become suitably dark adapted I attached my H-beta filter and 25mm plossl eyepiece. I drifted downward to fix onto the correct position. Yes there is clearly something there, a dark notch in a faint grey tone. I could discern this more convincingly employing averted vision. However as with all of these hard objects, time and patience is required and swopping over eyepieces. Suddenly though the sky lite up as four flares shot high into the air, followed by several explosions. This was activity on the military training camp at Otterburn, some distance from where I was situated observing yet the sky glowed bright. Not too deterred I decided to have another go later. So later on everything began to look good once more - this time I attached my 20mm and H-beta filter. I started to drift downward when, a visitor arrived. It was a local Police Officer. He apologized for the flash light which completely killed my night vision. Never mind he was very enthusiastic and expressed that with more than 8 years being stationed in Northumberland he had not yet seen the aurora. I remarked that a trace of it had been sighted just two nights earlier near to Hexham so there is always a chance. I gave him a tour of the highlights the Universe has to offer and he was clearly captivated. By the time he left Orion had begun to fade from view. The saga continues. A host of galaxies followed with NGC 2683 being my favourite for the evening.
  11. 5 points
    Hi all, Been a while and found a four or so AVI's I had never even looked at. Did a quick process and thought I could make a nice mosaic out of two of the images. The first highlighting Crater Janssen, and the other showing the vallis off to the left of the shot. Tried using a new format as well, though only to fit in with the shape of the mosaic.Obtained LROC data for the crater and used an experimental 3D model feature to try and give some perspective. I was going to add some other info around rock types etc, but will save that for another singular target. Taken a while to work it all out so apologies for that. Taken on the Edge800HD, AVX, ZWO120mm-s (and wheel), Baader IR-pass filter, TAL 1.2x (from the front of the TALx2 barlow). Got a couple more to work on, but not sure if they are worth putting up. Will try and get out tonight..meant to be nice later on. Anyway, thanks for looking!
  12. 5 points
    Taken las night whilst trying out 10 min subs with mt ED120APO and Canon 1100D. this is the result of 20 x 10mins = 3 hrs 20 mins total exposure. Bias and flats included. I did take this object last year with 5 min subs but this one is far deeper - easily to mag 17 or more. I have marked over 120 galaxies within the image. As a bonus Comet 32P Comas Sola is dead centre of the frame. this is Mag 14.94.
  13. 5 points
    I was offered a Reducer last night for this image, but refused. I thought it would make things more complicated. Then there were some serious stacking errors (I think I stupidly moved the scope a tiny bit with fiddling!) so I had to crop it at the top, Grrrr, Should have used the Reducer. Megrez frac, 13 x 8min subs. Processed in StarTools the a Noise Reduction tweak in Photoshop. Any suggestions and criticisms most welcome! Alexxx
  14. 4 points
    Greetings from Cyprus My name is Phedias and this is my first post . One of last years sketching attempts. Hope you like it Clear skies
  15. 4 points
  16. 4 points
    Having acquired M81 figured I'ld better have a bash at M82. Acquisition details can be found by clicking on the image at....
  17. 4 points
    A stack of Jupiter GRS transit last night. The seeing was not great (lots of turbulence from my site) and this is as good as I managed to process a stack of 1000 frames with PIPP, A2S and PS. This is the second time I went out this year to do stuff with my scopes so I'm happy with the results. I tried to sharpen but that introduced a lot of ugly artifacts. The first time was to test the Starsense camera. I will report on that in a separate post.
  18. 4 points
    Tonight was my First Light with the Skywatcher 250px. In Borgholm here we had a clear sky with plenty of visible stars. So I took it out and focused on Jupiter. I was wondering why I could only see a white disk and the spider legs holding my secondary mirror through the eyepiece, but I persevered in the hopes of detail appearing on this disk. After a while I realised nothing would change, so I headed home, dejected, and put everything away. It was only then that I realised I hadn't pulled the truss tubes the whole way out (halfway actually). Or at least I think so (it would explain seeing the secondary mirror/spider legs in the eyepiece. Moral of the story - make sure your truss tube dobsonian is FULLY EXTENDED before stargazing. PS - Still managed to see Jupiter's Galilean moons through the finderscope alone, so it wasn't all that bad.
  19. 4 points
    This is my second go at M31. First one can be found here: http://stargazerslounge.com/topic/230301-is-this-a-focus-or-dew-problem/?p=2488473 These are at 800 ISO with my Canon 600D attached to the Skywatcher ED80 (with reducer) Guided by the ZWO ASI attached to the Skywatcher 9x50 finderscope20 x 300 seconds 15 x 30 seconds 20 x Flats No Darks (All from 21 February 2015 - I completely messed up my choice of target - I couldn't decide between this and Horsehead - and found after a couple of hours that M31 was disappearing rapidly behind the roof of my house. No doubt the images will have been affected by the heat rising from the roof. Oh well ..... I live and learn, albeit very slowly, it seems.) Processed almost entirely in PixInsight.... ... I find it difficult to get any success with HDRMultiscale Transform - all settings seem to suck the contrast out of the image, and I don't seem able to recover it. (I am learning by following Harry's excellent videos.) As such, I took the image into PS to 'sharpen' the dust lanes (using the High Pass Filter and 'Soft Light'). It would be nice to find a way to do this sharpening in PI - even minute quantities of Atrous Wavelets seem to generate noise. I can get more 'dramatic' colours (deeper blues and reddy browns), but I am not sure if I prefer a more 'naturalistic' look. I'd be grateful for suggestions as to how it can be improved. At least it is better than the last attempt.
  20. 4 points
    Hi all, Finally another clear night, and a chance to have a go with the Lodestar X2C on my 8" Celestron Edge SCT, alt/az, at roughly f4. Waxing Crescent Moon, fair bit of humidity, and the usual light pollution from nearby Vancouver, BC, but some nice views. I rolled back to LL v0.10 after some challenges with colour balance "on the fly" with v0.11 (I need to practice with the new version some more, admittedly, but find the small histogram/balancing peaks in RGB in v0.11 a challenge). Very impressed again in how well the stacking and images come out with LL!! Some nice detail in the galaxies - it almost seemed even better "live" on the monitor than looking at the pictures after the fact. And I was able to view a few galaxies I hadn't before - I didn't include all of them below, as some of the images aren't as "showy", but I was impressed that I could see them (and some structure!) at all.... Comet Lovejoy is still there, but without the non-linear scaling I couldn't get it's tail to show up very well... Cheers, - Greg A
  21. 4 points
    Hi everyone. Just posting another image from Thursday evening last. This one shows Europa closer to its appointment with Jupiter a few minutes before occultation. GRS was nicely on the ascendency as well. Many thanks for looking! Best regards, Ralph
  22. 4 points
    This was shot during the past week between the clouds. It is a combination of 9 x 15 minutes in ha, taken with the Atik 460EX, through the Takahashi FSQ106N, processed in Pixinsight. We think this monkey is definitely a macaque... Comments welcomed. Dave and Zoe
  23. 4 points
    They appear to be popping up a lot lately, I wonder why? I tried a new framing last night, with the camera rotated from its usual orthogonal RA / Dec orientation in an effort to get more of the nebula in. What do people think? Another 5-10 deg might do it, but I'm not fussing just now. If it stays clear on Tue I'll try to add to the data. 12 x 10 min subs, 3 nm H-alpha Astrodon. Megrez 90 with 0.8 reducer / flattener IV. Some of the brighter stars look a bit bloated, but the guide graph was pretty good for my set-up.
  24. 4 points
    Sirius is the best/worst at this - I once spent ages during a night of meteor watching wondering why the police helicopter in the distance wasn't making any noise. It just hovered there, flashing red, white and blue. That was Sirius.
  25. 4 points
    Just in from a great session that started with a quick look at M42 and comet Lovejoy, then the galaxies I had planned in Ursa Major old favourites M81 and M82, then M108 some detail of the dust clouds visible and M109, sneaked in M97 Owl nebula. Then started on the NGC's with 2681, 2742, 2768 and 2741. Finally a long shot to find super nova ASASSN-14lp in NGC4666 (Virgo), I turned the scope round and bingo both NGC's 4666 and 4668 were in the EP and the SN was clearly visible. A great end to the session. I am enjoying a cup of tea now and warming up, my note book froze to the table. I hope your session went well.
  26. 4 points
    Evening all So I have checked and I logged 21 new galaxies tonight with my new 16 inch scope. Numerous mag 15 stars seen as well. This new reflector is a grand galaxy spotter. There are just so many of these galaxies out there. Even at the rate I am going there are still so many more to see. It is quite something. Tonight's collection - mostly mag 12 / 13 NGC 2998 3106 (2911 2914 double ) 2919 (2562 2563 2560 Triple) 2569 2800 3020 3024 3016 3070 (4217 4226 double) (4231 4232 double) 3596 (3646 3649 double) I think 3016 is the most distant with a recessional velocity of 8869KM/s which equates to about 400 million light years away. Its a spiral and apparently its a radio galaxy. And Virgo is still not high enough to aim the 16 inch scope at yet. Mark
  27. 3 points
  28. 3 points
    Ive heard alot of people claim that observing the sun with large apertures (8 inches and above) is a bad idea. Ive been doing it for about 5 years and haven't had any problems I used to use a 4.5 inch newtonian on an EQ1 mount with Baader solar filter. and when i upgraded to a 10 inch Dobsonian. The difference was fantastic. I could make out surface granulation and much more detail in the sun spots them selves. I purchased a Baader continuum filter which does bring out more surface granulation but the effect is subtle. heres a video of a session.
  29. 3 points
    Limited view to the East, so my first attempt this season Taken with DBK21 & C9.25, stacked with Autostakkert, processed with Registax Don
  30. 3 points
    It is well and truly Jupiter season at the moment, so for fun I thought I'd be different and have a first go at Uranus before we lose it for the time being. Using SW150P and Philips SPC900 webcam, I'm really happy with this for a first effort. Small and featureless as you'd expect, but most importantly, it's green :-) h
  31. 3 points
    Hi A great night and some new targets for me - looks like I'm getting to grips with the 35nm Ha filter. All taken with Lodestar-C, Baader 35nm Ha filter, Lodestar Live, INED70 with AE x0.6 1.25" reducer (210mm effective F/L, F3.0) screen grabs showing display settings. 60s exposures with median stacking. There's a strange artefact in the Flame/Horse Head Nebula and M78 which I think is due to internal reflections in the reducer, caused, I think, by local light pollution from a HP Sodium lamp - not evident in all the images. Or possibly from a bright star.All in all a great night.Once again thank you Paul81 for creating and developing Lodestar Live!!CSPaul
  32. 3 points
    Hi - good session last light after the family went home after the evening meal! Here's M42 [10s]; M1 Crab with pulsar inset [60s=3x20s] and B33 Horsehead [120s=6x20s] via 30cm f/4 SCT+SX Lodestar-Cx2 - some nice PNe in Orion/Mon to follow. Used + SX classic s/w, which I'm very familiar with, this morning on saved raws - I'm having problems with LL for some time now via Lodestar colour and W7. The HH [reduced in size] helps smooth the aggresive contrast stretching although again 5s exp just reveals this ellusive object - hope you like 'em
  33. 3 points
  34. 3 points
    Sirius can be quite a sight can't it?! I wonder how many times Sirius has got the local branches of the Aetherius Society or the Galactic Brethren out with their thermos's and 'Welcome' signs....?
  35. 3 points
    Of course with any new astro kit comes a period of poor weather. But despite this I've now had a few outings with an astro modded Canon 600D (from Cheap Astrophotography) and another piece of new kit - the excellent Star Adventurer mount. Here's a few widefield images taken with the newly acquired camera...... 30sec ; f/3.5 ; ISO3200 ; FL 16mm equiv Single exposure - 4min ; f/4 ; ISO1600 ; FL 88mm equiv Two single exposures stitched with Microsoft ICE - each 2min ; f/4 ; ISO1600 ; FL 88mm equiv The new kit is working quite nicely. Now if only the weather would let me use it more [A few more of my recent widefield shots can be found here - www.flickr.com/photos/57299237@N05/]
  36. 3 points
    So, had my new SW 200p dob out in the garden last night for the second time. In comparison to the Seben 3" scope I was using before this thing is in a different league. Was out for around 3 hours in total, highlights below. Spent about an hour viewing various bits and bobs in Orion first - M42/43, "Orion Nebula", looked great, could barely see M42 in my old scope and M43 wasn't visible at all. - Delta Orionis, Double *, easy split could see the blue colour of both stars - Iota Orionis, Multiple *, resolved all 3 components, the B* is only approx 10" away, would never have seen this with the old scope. I'm now curious to see what the smallest double I can split is! - Sigma Orionis, Multiple *, resolved all 4 components, again the closest star would have been too close and faint to see previous. - NGC 1981, OC - NGC 2169, the "37 cluster", OC. this is pretty cool, never seen it before but well worth a look, it does just look like 37 written with the stars. Then moved onto a few other targets in other constellations - NGC 2392 (GEM), the "Eskimo Nebula", PN. took a bit of finding but well worth the effort. Was quite impressed with this one. Another that would have been out of range for the 3" - NGC 457 (CAS), the "Owl Cluster" or "E.T. Cluster". a personal fave, does look a lot like E.T.! - M103 (CAS), OC - Iota Cancri (CNC), the "Winter Albireo". Yellow/Blue colours very obvious. Easy split. - M44 (CNC), "Beehive Cluster". Couldn't fit it all in the FOV, may need to purchase a lower mag / wider fov eyepiece - M67 (CNC), OC Then finally a quick peek at Jupiter, which always looks amazing. Was planning on waiting up a bit longer while Leo got higher in the sky but "parental duties" put an end to the session. Great nights viewing all in all. Was very clear by us, few clouds early doors but they quickly passed. Looking forward to the next time already. Lee
  37. 3 points
    well after setting up last night I went straight onto fuzzies and star collections blobs best way to describe them as the street light in my back garden totally ruins it for me hard to see mizar somedays its that bad also draw a line north to south and everything to the east is what I can observe so not the best here goes what I looked at m48 m81/82 ngc2420 2331 2260 beehive then tested new 6mm eyepiece on Jupiter
  38. 3 points
    M106 Highest resolution ever... by Andre vd Hoeven, on Flickr Full resolution via the link above... About 2 years ago I worked on a mosaic of Messier 106, made using images of the Hubble Space Telescope. Recently I found some new data sources on the internet, including some huge telescope databases with data from professional telescopes. That’s when I decided to see it there would be more field of view possible for this image. Finally I found highres (0.18″/pix) data from the Canadian-French-Hawaii Telescope, located at Mauna Kea. Processing of this image has cost me over 4 weeks, but I think the result is quite unique. As far as I could tell there has never been made such a high resolution image of M106 at this field of view. The image shows galaxies up to a magnitude of +25. Literally thousands of galaxies can be observed in the background. Data used: R,G,B (r,g,u) data from the CFHT telescope (about 15 Gb!) M106 core and NGC 4248 (lower right) were made using Hubble Space Telescope data. Colors of the M106 core were imaged by the 1m telescope of the Tzec Maun Foundation in Cloudcroft, NM. Several details made by the 8.2m Subaru telescope in Hawaii. M106 Pierre Méchain discovered this galaxy in July 1781. He wrote a letter in 1783 to Bernoulli mentioning the discovery. He also sent his discovery to Charles Messier, but he never added it to his famous Messier catalogue. It was only in 1948 that this object was added as M106 to the catalogue. In 1788 this galaxy was independently discovered by the famous astronomer William Herschel, who described it as follows: “Very brilliant. Bright Nucleus. With faint milky branches north preceding and south following. 15’ long and to the south following running into very faint nebulosity extending a great way. The nucleus is not round.” M106 is accompanied by the much smaller galaxy NGC 4248 (just below M106). M106 is at a distance of about 25 million light-years from our own galaxy in the constellation Canes Venatici. It is a spiral type galaxy and has a diameter of about 135 000 light-years. The spiral arms extend clearly out of the bright core and active star formation areas can be recognized in the arms. M106 has been classified as a Seyfert galaxy with an active nucleus, showing emissions in the X-ray spectrum. The core probably contains a massive black hole with a mass of over 40 million solar masses. This is about ten times the mass of the central black hole in our own Milky Way. Recent images acquired by the Chandra X-ray observatory have revealed two extra spiral arms previously hidden from optical observations. Credits: Processing: André van der Hoeven Data: Hubble Legacy Archive, Canadian Astronomy Data Center, Japanese National Observatory, Tzec Maun Foundation Acknowledgements: This data was obtained using the facilities of the Canadian Astronomy Data Centre operated by the National Research Council of Canada with the support of the Canadian Space Agency. Based on observations made with the NASA/ESA Hubble Space Telescope, and obtained from the Hubble Legacy Archive, which is a collaboration between the Space Telescope Science Institute (STScI/NASA), the Space Telescope European Coordinating Facility (ST-ECF/ESA) and the Canadian Astronomy Data Centre (CADC/NRC/CSA). Thanks to the Tzec Maun Foundation for sharing their data and telescope time. Thanks to the Subaru Telescope data archive.
  39. 3 points
    been back out, as had a brainwave and scavenged a coin cell for the quickfinder from an old pc motherboard I have lying around, got lined up and Jupiter spot on the middle of the webcam sensor done a good 3 mins of video so now probably going to be up all night processing it lol
  40. 3 points
    Hi everyone I d like to reiterate what Olly was saying about being bowled over. Thanks for the Ana ing response to this image.i m at the Galway astro festival today and the small print I quickly made of ollys image went down with gasps, and praise. It's going to be fun whatever we do with this. I hope to be able to get it to the stage where everyone can get to it, and see it huge as it should be seen. Lots to work out in the meantime, from the printing to the how do we go about this. This is a learning curve I was not expecting to try to get to grips with when I started this. It's exciting to have other people excited by this. Thanks all again for the encouragement. Tom.
  41. 3 points
    just got back from the Neuadd cold is an understatement but managed a few shots
  42. 2 points
    Hi, I am new to CCD imaging and tried my new Atik 414ex tonight. Lots of firsts, so all kinds of things could have gone wrong. In doing the RGB images, I noticed various light patches in every single sub, with all filters. I tried a dark, and got the same light patches: This looks like something is rather wrong to me - is this normal? This calibrates out relatively successfully though and my first effort at processing is below (M67) but I am a bit worried my first CCD has something wrong with it.
  43. 2 points
    I Finished this last night and have had a play with the data, there are a few interetin issues going on i need to look into, mostly the overall brown sky, and some of the stars are red on one edge blue on the other, When I tred to apply a luminance it all gets far worse... lots to learn with LRGB.
  44. 2 points
  45. 2 points
    Thanks Merlin66, I use close-fitting end caps (made from Baader film) and a reducing mask on my big scope. Health & Safety, Risk Assessments… risk-taking is not an option Melanie
  46. 2 points
    At least you can return it under the long distance buying regulations sent from my Sony Xperia Z2
  47. 2 points
    Definitely sounds like either the plug(s) or the lead itself has a short circuit somewhere - where the internal wires are touching. (Or, hopefully not - a short circuit inside the mount socket/ PCB) Have you tried connecting just the cable on its own - no connection to the mount? Easy to check if you have a multimeter...... The last thing you want to consider is a bigger fuse!!!
  48. 2 points
    HI, for starting out with imaging take f/5 everytime. F/4 has a much smaller collimation spot and more coma. f/5 is still very fast. For f/4 imaging you really need a carbon fibre optical tube to stop heat expansion and flexure putting collimation out, plus you need advanced collimation tools. Definately f5 to learn the ropes and f/4 if you like a big challenge.
  49. 2 points
    Thanks guys… you've been really helpful. Jules, I was interested to hear that your Mak didn't fair too well for solar, as I'd been toying with the idea of moding one as an alternative to a refractor. On balance, I think I'll go for the Startravel 102 which I've found for £187 from Wex Photographic which includes an EQ-1 mount (which I'll upgrade as soon as I have some more cash). At the moment, I can only dream about buying a Herschel wedge - my husband will probably ask for a divorce unless I stop spending money on astro kit! The main use for my budget solar kit will be for solar physics workshops (mostly for kids), together with other moded scopes and bins. I figure that a portable refractor will be easier to cart around than my 8-inch monster! Melanie
  50. 2 points
    Very interesting thread, i have been at a friends today viewing solar, i took my 150 maksutov with newly made white light filter and it was just rubbish, Shane had his skywatcher star travel 120 set up with hershel wedge and it was lovely, very good views, also as stated the Tal 100rs works very well
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