Jump to content

sgl_imaging_challenge_2021_annual.thumb.jpg.3fc34f695a81b16210333189a3162ac7.jpg

Leaderboard

Popular Content

Showing content with the highest reputation on 02/10/18 in Posts

  1. After a couple of weeks of testing and visual play here is the very first image taken through my SW Evostar ED150. As you may imagine the visual experience is marvellous. The image was taken in the early hours of the 1st October along the terminator. The field of view ranges from the North polar area as far south as crater Eratosthenes. The second image is just me doing a crop because I prefer the framing of Mare Imbrium and crater Plato in the North. I need to experiment with the camera settings somewhat but I am very happy with the performance of both scope and camera. Thanks to @FL
    17 points
  2. With the show that the planets gave this year I even left my poor Moon aside, but killing a little the longing after seeing a photo of these I could not stop publishing. Stadius and Eratosthenes should have been two extremely similar craters. Both are roughly the same size (60km and 70km). What sets them apart is just their age, Stadius is from the Imbriam period and was formed about 3.8 billion years ago. Etosthenes is a much younger crater, belonging to the eratosthenian period and must have formed between 1.5 and 2 billion years. Stadius was submerged by magma rivers that flowed on
    14 points
  3. Jens Zippel recetly posted an amazing image of this nebula with 24 hours of data so when chosing a Ha object for Sunday night while the moon was conspiring against astrophotography, I was naive enough to have a go at it. Little did I know how extremely faint this object is and I have never had to stretch data so much. Before the moon came up I managed to get 90 minutes of RGB and then I cought 260 minutes of Ha with my ASI071, which is a OSC so geneally not ideal for weak Ha. There was hardly a hint of the neubula in the RGB data so all of i comes from the Ha data. Obviously I need more data b
    11 points
  4. 15 @ 15 mins Ha, 15 @ 15 mins Oiii, 15 @ 15 mins Sii, 10 each @ 5 mins RGB(for stars). I might go back and do a LRGB version.....perhaps.
    9 points
  5. Figured some of you might like to see my progress with Andromeda so far... 3 separate nights, some better than others... Unfortunately the one with the most amount of subs (3 hours worth) the scope wasn't properly colomated and was out of focus and the one with the best image (IMHO) I had the camera orientated the wrong way so clipped the edges
    9 points
  6. During two nights I managed to get 29 x 10 minutes @iso200 on this shy target. Postprocessing was not easy, so I ended up with some much appreciated PixInsight processing help from @Ceph - Thanks Jim ! Stars may be a little soft due to extreme humidity, but at least I kept the corrector plate almost clear. C & C most welcome. Ragnar
    8 points
  7. With the short nights and poor UK weather over August myself and @PadrePeace (Chris) decided to make the most of the imaging time available by working on our first pre-planned collaboration and also my first narrowband image using my new mono camera. We both image using Newtonians and so that presented some additional challenges with aligning the diffraction spikes between our two imaging setups. We solved this issue by rotating our scopes in their tube rings until our diffraction spikes intercepted an agreed star close to Altair. We decided that Chris would focus on gathering
    7 points
  8. 30 x 1800 with the TS Imaging Star and The QSI. Give it the usual click through to get the best image.
    6 points
  9. After having almost selling my three Newtonians to buy a 16" truss scope on SGL, I have decided that I'd keep the 6" f11 OTA, the 12" f4 Dob and the 16" f4 dob. However, this experience has spurred me on to get my bum in gear and recreate my 16" as a more portable truss system. I have made a few of these before and I'll update this thread as I go. Here's a pic of the scope Although I did 'modify' it to make it more transportable, this was always temporary. It may be a while before I get started and I'll add as many photos as I can.
    6 points
  10. @RayD Please don't worry that much! Accidents happen, even for the best prepared, and it is likely to be an isolated short-term issue. As long as everyone thinks about it and does their bit then the overall experience will be good for everyone. Helen
    5 points
  11. Although it's 12hours of data some of it is iffy as the clears night were not that clear plus the moon was up! First post using 2x Baby Q scopes both with QE reducers, One 9.0 cameras & Astrodon 5nm Ha filters. Peter
    4 points
  12. That's Ray's outfit for the weekend
    4 points
  13. Very dependent on magnification as well, too much or too little and E & F seem to disappear. ?
    4 points
  14. The new SW Evostar ED150 is really getting some use here after my initial tests. We are having a good run of clear skies. This morning I got up at 3:30 am to do a lunar imaging run (see elsewhere). After that I quickly set up on M42 as it was near the local meridian. Using my ES 4.7mm 82' EP (255x) I concentrated on the Trapezium first. I was staggered by the view not only because of the detail under the Moon but because all 6 stars (A to F) were clearly visible immediately and pin sharp sitting in a greenish mist. Here is my really quite poor chalk sketch of the approximate view hastily
    3 points
  15. Hey everyone, The school term has started, and after almost a month of rain we were able to get the Borg 125SD at f5 out again, with the Trius 694 and filter wheel combo. Here are some of the objects - a few are more wintertime than fall objects, just a consequence of a late start. Clear skies, but only average seeing. One pleasant surprise to me was how well things worked even with a nearly full moon... visual work was difficult, but the camera & filters worked pretty well! The images are all captioned... see if you can find the planetary nebula in M46! ? Enjoy
    3 points
  16. Hiya been on here a while but haven't posted anything. Kitwise I have sw ed 80, eq5, which I have just converted to goto and Canon 5d3 for imaging. Unfortunately I live in a town centre and my neighbours have outside garden lights so that restricts me somewhat but looking forward to trying to get some images of something/anything soon ?
    3 points
  17. Thanks all, it's very reassuring to know I am unlikely to get lynched, as I will most definitely be trying very hard to be responsible. I've even ordered some dimmable red LED lights for my tent, and some of the acetate to cover my screen (it does have a red screen function but, as noted earlier, this may not be good enough). I think the nerves are there now, but will be really good to meet you all, even if I end up leaving all my imaging kit at home and just cadge a look through the big dobs (and enjoy a curry and hog roast). PS, one sight of a pitchfork and I'm off!
    3 points
  18. Mainly it's portability so I can get it in the car more easily. Plus they look cool ?
    3 points
  19. Hello Just a simple shot of the NAN are in Cygnus. Taken with the following setup.. Vixen Photoguider / Canon 450D modded / Canon 100mm f2.8 USM @ f4. 30 x 2 mins unguided. Stacked in DSS with calibration frames and processed (poorly) in Photshop .
    3 points
  20. I feel like I just want to hide under a double thickness blackout sheet for the weekend now, with just my lens cell poking out of a hole (taped to to blanket of course) just in case I have an unexpected leak
    3 points
  21. That has been playing in my mind for a while But it is currently filled with engine parts and an engine crane! Need to extend my garage to be able to empty it and convert it Maybe next year! haha
    3 points
  22. I have been looking through my records of past detections as the phenomenon of initial streaks with increasing and decreasing frequencies was something the The Admiral and I were intrigued over in the past. The number of increasing initial frequency plots were always very much fewer than the decreasing frequency ones (I will see if I ever made a guesstimate of the occurrences). Here are just a few recorded from back in 2015. I also attach excerpts from my Astronomy log for 2014-2015 with some figures- Excerpt from 2014-2015 Astronomy Log.docx Best
    3 points
  23. Interesting topic this. Thanks @souls33k3r! I'll give my 2 cents. Well, 2p actually, as i'm technically in the UK! It's funny, everything about me, my personality, my job, my interests...i'm a numbers and science guy. But when it comes to AP, i'll always trust my eyes over my brain. I don't like the thought of changing a setting with some random numerical value, just because i read it in an article somewhere, i'd always rather test things out in real-time with my own eyes and decide for myself what i think looks best. And for this, nothing will ever beat Photoshop. This is why i will alw
    3 points
  24. I was looking at the widefield version again, and noticed the uneven background colouring in certain places. Most noticeably in the lower right. At the time of the original image, i had thought it was just trace levels of Ha that was causing the excess redness. And no doubt there is definitely traces of very faint Ha regions all throughout the Veil, but on second inspection it's just too distracting to the eye. And in any case, i can't be completely certain that it's not just a gradient, so i ran it through APP to try and neutralise the backgound a bit better (something i didn't spend long eno
    3 points
  25. Greetings & Hello everyone! Sergio, from the center of Spain, wanting to start again in this amazing hobby after a long break. I'm now focused in observing with my ES 300mm truss dobsonian and trying to finish the processing of all the objects I captured before the break before purchasing new astrophotography gear. Looking forward to share knowledge with all of you.
    2 points
  26. Winters Gold is always a favourite.. ?
    2 points
  27. My arrival has been set back till Thursday work dictating the order of the day , forecast not looking too good until Saturday when a carpet of stars has been promised, I will be bringing a rather nice and unusual malt at this occasion and you are all invited for dram ... rationed on course !!
    2 points
  28. In fact your idea of a pub and beer might resolve everything ? well at least for me. Cheers, Steve
    2 points
  29. Not sure about expert, perhaps just a cunning parrot who can repeat what he is told On days of good seeing and at lowish power you can generally see a mottled effect over the surface of the sun, which to me is more pronounced towards the centre where you are effectively looking straight into the cells. Often refered to a granulation, this has been explained to me more as 'macro-granulation' and is I guess due to the variation in distribution density of the unseen granulation cells. The cells themselves are very small, about 1 to 2 arc seconds across (The same as the separation betwe
    2 points
  30. Thanks everyone who have made time to make vast improvements on my initial image. This is one of the many things i like about SGL is peoples willingness to help out
    2 points
  31. I got VAMO delivered in a few days. When I contacted Beat he was packing to go on holiday. Obviously I was in a hurry ( like with all astro toys he he ) so I asked him if he has any in stock and if he can send it the next day before he goes. He did actually! Great service from him. He answers emails quickly as well. Highly recommended. It might look small but in reality it is not and can handle 80mm and 102mm tubes quite good. 102 f6.5 on Berlebach Report and Vamo is steady!
    2 points
  32. Pretty good going to capture Alpine Valley.
    2 points
  33. That's the irony , i'll be swapping time for less purchase power I better start saving for that 10 micron mount , it won't be getting bought in retirement Jim
    2 points
  34. Gina I know exactly how you feel regarding balancing the cost/usage thing. I'm really restricting my equipment spend now. With a few years to go until retirement I really can only make use of it at weekends or holidays and then it is of course as always weather dependant. I will be lucky if I get an imaging session each month now through to spring. I'm at the stage where I have a reasonable mount (AZ Eq6 GT) a second hand one shot CCD (starlight express) and have just got a guiding package together. My last purchase was a copy of PixInsight (thank you tax rebate). My obsy was the biggest
    2 points
  35. About 4 months ago, I brought a $20 trash scope (50mm f/7) back to a usable state at minimal cost, it was posted here : https://stargazerslounge.com/topic/315129-removing-the-trash-from-a-trash-scope-trash-panda/. Recently, I made two "improvements" on it. First of all, I added a "screw eye" on the hood to align with the L-bracket on the tube to make the "finder" more accurate. The adjustment/alignment is done but rotating the hood and screw eye itself. Next, I replaced the 45-degree hybrid-diagonal, which I found to be extremely difficult to use for astronomy, with a .965" 90-degree mirror di
    2 points
  36. Not necessarily a bump in the night, but close. Years back, went upstairs to go to bed. Was standing by the bed when my oldest daughter who at the time was twelve or thirteen, reached out from under my bed and grabbed me by both ankles. I aged 10 years in an instant. She still to this day dies laughing when it comes up.
    2 points
  37. It is a wonderful cluster and by age a very old one as well.
    2 points
  38. Look at this... possibly dark in the far north, but this amazing view will be below the horizon. Worth finding a hill near the south coast as almost the same view will be visible just as darkness falls, just above the horizon! At dusk ~5pm they will be about 8 1/.2 degrees altitude. Get Jupiter as early as you can and hope to get Saturn!
    2 points
  39. Good point. We are in this hobby for enjoyment, so although it is great to make life easier for ourselves in certain aspects, I think to take away all the personal in-put and taste and feeling of achievement, would as you say leave you with no involvement in the hobby and then "what is the point"? Lol Carole
    2 points
  40. Apologies in advance for the next few weeks of cloudy skies... I just got a nice sturdy base installed for my scope...
    2 points
  41. We have replaced all the bulbs in our motorhome for LEDS. The fluorescent bulb in a strip lamp over the sink has been replaced by a strip of red LEDs. When I'm observing, this is usually the only light on in the van. This is also the light we turn on when getting up to go to the loo at night - because the light is red, it doesn't reset your body clock the way that blue does, meaning it is easier to get back to sleep.
    2 points
  42. If your patio is made of slabs rather than cast in one piece I think it fairly unlikely that you'd have a problem. You'd only need a small gap between the pier and the patio slabs as well, probably so small as to be visually insignificant. When problems arise it's because both the surrounding slab and pier are in rigid connection. Olly
    2 points
  43. Have to eat humble pie and apologise for my earlier post. I have just downloaded your 16hrs tif file and when I have a look in PI with a super stretch you certainly have caught some interesting galaxies so your perseverance worked.\ Sorry for rushing to judgement.
    2 points
  44. Certainly more chance of clear skies in Spain than here I would think ? Welcome to the forum Steve
    2 points
  45. Hello Sergio and welcome. Peter
    2 points
  46. Hi, That's a really nice photo. I love the "semi widefield" feel to photos of this area of the sky, so many stars but also so many galaxies! Its a lot busier overall than the plough galaxies. I was going for this one as well, but then the mount autoguiding packed up! Hopefully I will be able to revisit next year with a new HEQ5, if I find one. John P.S. I might have a play around with your tif and see whats hiding there, if thats ok with you! EDIT: After a quick stretch I am absolutely stunned at the detail you've got there. Did you take flats, by the way? There
    2 points
  47. Hi Dean, I like your serious efforts, that is the best way to push the limits. I gave the image a try in PS (CS5) and also used GradientXterminator and Topaz Bundle. You have very little noise, thanks to the 16 hours of data. /Ragnar
    2 points
  48. Watch out Demon, Rendition means something completely different to our American friends..... or should I say Cousins ! The United States and Great Britain are two countries separated by a common language. George Bernard Shaw Michael
    2 points
  49. Having breakfast this morning.... This shot nicely shows just how bright the observatory is!! I literally had spots before my eyes after looking out the window. Where did I leave my sunglasses.... ? EDIT - it was a late breakfast today ?
    2 points
  50. A starlight night lured me out to the observatory. Fitting my 35mm Eudiascopic eyepiece into the 100mm scope, giving X21, I spent a good hour aimlessly sweeping through the milkyway. Triangulum was rising and reasonably well situated so I thought I'd take a look at an often overlooked gem - M33. Attached is my quick sketch of the face on galaxy. Although the sketch didn't take long, the star field being only approximately placed, i spent some time examining the subtle glow afterwards for any structure. There were times when hints of subtle detail appeared to be there but I couldn't be certain,
    2 points
  • Newsletter

    Want to keep up to date with all our latest news and information?
    Sign Up
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.