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Showing content with the highest reputation since 10/01/16 in all areas

  1. 54 points
    Two panels, the lower one from last year. The top one was from this week, with guests, but Tom remembered that he also had a good dose of Shark Nebula data so that went in as well. The lower panel is Ha OIII LRGB for the supernova remnant and planetary nebula while the top is only LRGB. About 50 hours, dual Tak FSQ106N/Atik 11000/SXVH36/Mesu 2000. This time I went for an honest colour, resisting the temptation to try to make the Shark look like an emission nebula! The three VDB objects are, 149, 150 and 152. The PN is G111.0+11.6 (catchy name) and the SNR is ... I've forgotten!!! Olly, Tom and guests.
  2. 48 points
    First time I have a proper go at some astro with my nifty fifty lens. Canon 600d full spectrum, ISO800, 50mm f1.8 lens stopped at f4, 10x600sec guided on my eq3 pro mount. I love how it came out.
  3. 32 points
    Almost a month with no clear skies here in the south, but when I open up a little there I am capturing whatever is possible. Even having to get up at 6:00 a.m. did not resist and stayed until midnight to do this capture of Saturn. A photo with almost everything you have right, very visible tracks, Cassini and Encke Division, weak but present Ring C and even the famous polar hexagon. The snag was due to the excessive turbulence that caused the planet to jump too much and caused that edge ring where the north pole is lying in the Cassini Division, but nothing that greatly dismantles this beautiful astrophoto. I suggest to your colleagues to see the image in original size at this link: http://www.astrobin.com/full/298696/0/?nc=astroavani&real=&mod=
  4. 32 points
    I hope to catch more Lum tomorrow evening with clear skies forecast at the moment - here is a relatively quick process of the Leo Triplet M66/M65 NGC3628 group with 6 hours integration from last night. This is only the second time I have used 600s Lum subs and my skies can just about withstand that duration if I have good transparency and no moon. The tidal tail of NGC3628 is just beginning to reveal itself; it sure is faint. I was inspired to see if I could capture this feature after seeing ShineOn's image and also Olly's magnificant image (amongst other great captures too). Details: William Optics FLT132 at F5.6 QSI683-wsg and Astrodon LRGB filters 18 x 600s Lum 12 x 300s RGB each Avalon Linear Fast Reverse SGP and PI Thanks for looking and fingers crossed for more clear skies .
  5. 31 points
    I would like to post a big thank you to a trustworthy & fellow astronomer. I recently placed an advert on both SGL and ABS UK to to trade My 17mm Ethos for one of three eyepieces that were of interest to me, and eventually I received response.......... Now if I am honest I did feel a little nervy abut sending my treasured Ethos to someone I didn't know and it did cross my mind if I would ever hear from them again after sending it to them. However, after a few exchanges of e-mails we both agreed on a swap and off I went to the post office. Today I received the eyepiece and I believe this is a wonderful example of something positive happening in a time when doing good seems not so common..... here we have two people sending two very expensive eyepieces across the channel based purely on integrity & trust in one another. In reality either one of us could have pretended that we had sent an eyepiece and thus just keeping the one we received I didn't know Sylvain was a member of SGL until he replied to a post I made about having a Leica zoom in the post..... this just goes to show that SGL is bursting at the seems with great people. I guess this is not really any different to paying someone selling an item and not receiving the goods, and I am sure is an every day event. Anyhow I thought I would post it because it made me feel good about the world. Thank you Sylvain
  6. 30 points
    Thanks to Knight of Clear Skies for the suggestion that this might be interesting. It was. Firstly I took a lot of persuading that the open cluster-like powder of tiny stars in the centre really was a dwarf galaxy at 81 kiloparsecs.I think it is, though. It was nice, also, to catch a fair amount of patchy IFN including that distinctive streak. I haven't seen this in images I've found but doubtless someone will have caught it before. I really needed good flats for this and finally obtained some for Yves' SXVH36 by shooting them in AstroArt rather than Nebulosity. Flats shot in Nebulosity always over corrected but, at long last, that problem is solved. So this took two nights in the tandem Tak. SQM 21.75 and superb seeing. Atik 11000, 14x10 minutes per colour. SXVH36 19x30 minutes luminance. Total 16.5 hours. Processing in AstroArt, Registar, Pixinsight and Photoshop CS3. For the fullsize (good for fuzzies) click on the image and there should be a button in the bottom left. Olly
  7. 28 points
    The Milky Way rising in La Palma. I've only just got around to processing this from my trip back in May....so much to do so little time to do it.
  8. 26 points
    First Jupiter Gif in the 2018 season. There were 12 movies each with 7500 frames. Each film I stacked 3099 frames, I processed and then I made the GIF or AVI using PIPP. March, 08-2018 C14 Edge + ASI 290 + L filter + PM 2X Avani Soares Parsec Observatory
  9. 26 points
    My friend Alain Paillou offered me for the new year 3D views of some of my high resolution images. The technique used is that of georeferencing from the height data retrieved by stereoscopy by LRO and Kaguya. As Google Earth for Earth. This opens new possibilities in the presentation of our images. It's a big job from specialized software but the results are worth it. I begin to master them and have a lot of exploitable images. If these are caught vertically we can make 3D images from all directions, otherwise we must focus on the angle of the shot because on the other side there will be no filling. Some examples of his work : To compare : If you have glasses for anaglyphs : Clear skies. Luc
  10. 25 points
    Hi all - apologies for lumping all the Mars RGB images into one image composition...you'll have to click on the images to see them as large as your screen will allow... I am caught up with a lot of work with some more processing to do also, but this 2nd outing with the new ASI290MM allowed us to see how it ran in far less-than-ideal seeing conditions: I've dubbed them "2 minute Mars" even though some on the 1st night ran to 3 minutes... We'd been kicking back staring into campfires day & night from Friday till Tuesday but SkippySky claimed that seeing would be passable despite the strong jet-stream running that night - who are we to argue even if it sounded somewhat far-fetched - so we headed up the road about 30 miles to Carrieton to give it a go...our campsite is alongside a gully where air movement doesn't seem to suit planetary imaging... Seeing Tuesday evening started off woeful for Jove, so we went inside the van for a cuppa to wait for Mars...when we came out the sky was completely clouded..! After sitting there for about half an hour some breaks started appearing, but these were actually little "strips" of clearish sky between much larger bands of cloud...but with the weather we've had this year we were ready to have go in any half-chances! Hence the "2 minute Mars" where we got about 40 seconds of capture for each channel before any particular clear sky strip was swallowed up by clouds...then waiting for another clear strip. After a while the strips of clear sky vanished leaving total cloud cover again, so we sat there for an hour & thinking it was time to pack up...we had almost finished packing up when I looked up & noticed hat the sky was almost completely clear - this isn't the 1st time this has happened by a long shot...but one of the few times I convinced Pat it was worth unpacking again & plugging the laptop etc back into the scope/camera. We went straight to Saturn to be greeted by some very nice r&g feeds - blue was pretty nice also, but not quite up to some of the very good seeing nights we've had over the years...but the 3 channels gelled into some very satisfying rgb outcomes. Returning to a descending Mars we grabbed some of the remains of the better Saturn seeing...packing it in before it got too late & cold. The next night the seeing was jittery early but steadied up without ever approaching that of the night before at Carrieton - although without any clouds - so we ran a few r-g-b's, some iR's & a couple of l-r-g-b's before deciding we had had enough... The ASI290MM is certainly a good camera, possibly the best mono camera going around atm: a little more noise than the outstanding ASI224MC colour unit but with the advantages folks like us utilise in a mono camera. Even from our practical/anecdotal appraisal (what else really matters btw! ) it is delivering in quite challenging conditions: manual channel alignment is a real task, possibly reflecting the atmospheric conditions but it's been a long time since I have seen such demanding alignment: I should note that this is for Mars, not Saturn (very similar elevations btw) & much is connected with the blue channel Vs red which is understandable to a large extent...but still very observable, & I thought it worth mentioning... The variable f/l unit (simple version) is working quite well, adding over 1/2 metre to the f/l with some more possible...probably working at the optimum we'd usually employ but still having a tad greater sale if required is good... Here's the .jpg composition at 150% & capture scale, North up. We were impressed quite accidentally by this cams ability to pick up the fainter objects - Pat had the gain ramped up to keep track of Mars through the thinner clouds & I noticed how visible Phobos & Deimos were - we decided to image these tiny lumps of stone & did a quick 186" capture at 1fps - stacking 91 frames to get this image of the Martian Moons. I think this gives another insight into this particular camera: this image is not one where any "compositing" etc is done...raising the levels easily elicited the moons for selection & then slightly more levels raising to make them more apparent...then inverting the selection to drop the exposure drastically for Mars itsef...imho the fact that the image resolved both moons & also, despite the enormouns over-exposure on Mars itself, the lowering of the exposure thereon allows us to easily discern the Acidalia/Nilokeras regions in the North & the Sinus Meridiani/Mare Erythraem/Solis Lacus regions in the South...complete with the S.P. Hood. This surprised me quite considerably... This Mars/Phobos/Deimos image was a red channel recording, btw. Next is a selection of some of the single channel recordings of Mars from these 2 nights, mainly the first night...oops, seems like SGL wants it at the end..!!! Next, the best rgb Saturn capture (classic 6 minutes captures) along with an iR685 capture. The rgb Saturn reveals quite a lot of disk activity on close inspection... Finally, a North Polar map via WinJUPOS using the above rgb Saturn. AllSingleChannelsBothNights@150%.psd
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