gorann Posted September 13, 2020 Share Posted September 13, 2020 (edited) The moon is almost gone so I got the colour camera back on the RASA 8. I finally had good seeing last night, probably because it was also rather gusty. So I had guiding around 0.8"/pixel, which is good for my old NEQ6, and ok when I image at 1.94 "/pixel. Also the ASI2600MC must have got attached perfectly since the stars were round all the way to the corners for once. I used no darks (not needed with this low-noise camera) or flats since I have managed to keep the system dustfree so far. This fantasy provoking nebula is very faint so f/2 helped getting most out of a short night. I managed to grab 68 x 4 min, so about 4.5 hours. EDIT: When I see it posted it may be that I should tune down the sky brightness a bit? Edited September 13, 2020 by gorann 36 Link to comment Share on other sites More sharing options...
AbsolutelyN Posted September 13, 2020 Share Posted September 13, 2020 Superb image Goran. Also great to hear you got sharp starts to the edge. Link to comment Share on other sites More sharing options...
Sunshine Posted September 13, 2020 Share Posted September 13, 2020 WOW is that ever a rich image, those RASA scopes are speed demons, amazing work! Link to comment Share on other sites More sharing options...
gorann Posted September 13, 2020 Author Share Posted September 13, 2020 (edited) 22 minutes ago, AbsolutelyN said: Superb image Goran. Also great to hear you got sharp starts to the edge. 15 minutes ago, Sunshine said: WOW is that ever a rich image, those RASA scopes are speed demons, amazing work! Thanks guys! Much appreciated. The colours are quite rich but that is the way they came out - I did litte to enhance them. I can only blame the fantastic camera. Edited September 13, 2020 by gorann Link to comment Share on other sites More sharing options...
AstroNtinos Posted September 13, 2020 Share Posted September 13, 2020 Wow this image has so much detail...indescibable. Good job gorann. Link to comment Share on other sites More sharing options...
gorann Posted September 13, 2020 Author Share Posted September 13, 2020 3 minutes ago, AstroNtinos said: Wow this image has so much detail...indescibable. Good job gorann. Thanks! Yes, it suprised me too. Great fun to process. Link to comment Share on other sites More sharing options...
JeremyS Posted September 13, 2020 Share Posted September 13, 2020 Super image! Link to comment Share on other sites More sharing options...
gorann Posted September 13, 2020 Author Share Posted September 13, 2020 23 minutes ago, JeremyS said: Super image! Thanks a lot Jeremy, much appreciated! Link to comment Share on other sites More sharing options...
tooth_dr Posted September 13, 2020 Share Posted September 13, 2020 Totally in awe. That’s a very very nice image, oozes quality everywhere. Link to comment Share on other sites More sharing options...
gorann Posted September 13, 2020 Author Share Posted September 13, 2020 1 hour ago, tooth_dr said: Totally in awe. That’s a very very nice image, oozes quality everywhere. Thanks Adam, you are much to kind! Link to comment Share on other sites More sharing options...
ParallaxPete Posted September 14, 2020 Share Posted September 14, 2020 (edited) Wow, that's a beautiful image! I have been binging on ASI2600MC images recently (I have one on order) and this is the nicest one I have seen so far. Edited September 14, 2020 by ParallaxPete Link to comment Share on other sites More sharing options...
kirkster501 Posted September 14, 2020 Share Posted September 14, 2020 Superb. Not heard of this target before. Link to comment Share on other sites More sharing options...
ollypenrice Posted September 14, 2020 Share Posted September 14, 2020 Great result and what's particularly reassuring is the strong blue signal from the faint reflection nebulae (and they are faint even if they don't look it here!) If you're feeling fired up there is lots more shapely dust below the Shark itself. Because the noise is so low I think you just about get away with that level of brightness but in order to give the image that 'something held in reserve' look I might ease it down a touch if it were mine. Olly Link to comment Share on other sites More sharing options...
gorann Posted September 14, 2020 Author Share Posted September 14, 2020 7 hours ago, ParallaxPete said: Wow, that's a beautiful image! I have been binging on ASI2600MC images recently (I have one on order) and this is the nicest one I have seen so far. Thanks a lot for you kind words. I hope you camera arrives soon - I had to wait half a year for mine. Link to comment Share on other sites More sharing options...
gorann Posted September 14, 2020 Author Share Posted September 14, 2020 2 hours ago, kirkster501 said: Superb. Not heard of this target before. Thanks, much appreciated! Link to comment Share on other sites More sharing options...
gorann Posted September 14, 2020 Author Share Posted September 14, 2020 (edited) 8 hours ago, ollypenrice said: Great result and what's particularly reassuring is the strong blue signal from the faint reflection nebulae (and they are faint even if they don't look it here!) If you're feeling fired up there is lots more shapely dust below the Shark itself. Because the noise is so low I think you just about get away with that level of brightness but in order to give the image that 'something held in reserve' look I might ease it down a touch if it were mine. Olly Thanks a lot Olly! Yes, this camera is really good at picking up both blue and red. It could also be that the low noise allows for more stretching than usual. I will have a look for more details. Edited September 14, 2020 by gorann Link to comment Share on other sites More sharing options...
Allinthehead Posted September 14, 2020 Share Posted September 14, 2020 That's one mean looking shark Gorann. Nice image. Link to comment Share on other sites More sharing options...
gorann Posted September 14, 2020 Author Share Posted September 14, 2020 14 minutes ago, Allinthehead said: That's one mean looking shark Gorann. Nice image. Thanks Richard! Although someone seeing it told me it looks like a predator coming in from above swallowing a pray that screams out its fear. I can see that. 1 Link to comment Share on other sites More sharing options...
tooth_dr Posted September 14, 2020 Share Posted September 14, 2020 4 minutes ago, gorann said: Thanks Richard! Although someone seeing it told me it looks like a predator coming in from above swallowing a pray that screams out its fear. I can see that. The field of view in this one shows a second prey fish 😎 https://stargazerslounge.com/topic/360619-shark-attack-ldn-12351251/?do=findComment&comment=3944036 Link to comment Share on other sites More sharing options...
gorann Posted September 14, 2020 Author Share Posted September 14, 2020 26 minutes ago, tooth_dr said: The field of view in this one shows a second prey fish 😎 https://stargazerslounge.com/topic/360619-shark-attack-ldn-12351251/?do=findComment&comment=3944036 Thanks Adam - you just convinced me of my next target! I had recently seen it called the Gobie nebula - not sure if that is an official name, and I have found no proper designation for it. https://www.astrobin.com/j0keb9/ 1 Link to comment Share on other sites More sharing options...
gorann Posted September 14, 2020 Author Share Posted September 14, 2020 (edited) I and Olly @ollypenrice have has some interesting email discussions and analyses of the image this afternoon. I have reduced the brightness slightly and brought out a bit more details as the data would allow that, and then fixed some small odd patches that seemed overly blue and related to dark patches on in red channel of unknown origin. Olly must have a photogaphic memory of all the AP he has seen, so he spotted them. Thanks Olly! Edited September 15, 2020 by gorann 3 Link to comment Share on other sites More sharing options...
tooth_dr Posted September 14, 2020 Share Posted September 14, 2020 @gorann That is a really good rework, and even without comparing to the original, it just looks 'better'. Link to comment Share on other sites More sharing options...
gorann Posted September 14, 2020 Author Share Posted September 14, 2020 9 minutes ago, tooth_dr said: @gorann That is a really good rework, and even without comparing to the original, it just looks 'better'. Thanks Adam, but maybe it is just that pint you had? 1 Link to comment Share on other sites More sharing options...
ollypenrice Posted September 15, 2020 Share Posted September 15, 2020 That looks super and out of this world for the exposure time. (My suspicion of the blue patches didn't begin by my not remembering them in other images. Rather it was their shape, colour and distribution which looked artificial, particularly their colour. It was only then that I looked for other images. The odd colour was easily explained later by a simple absence of red.) Olly Link to comment Share on other sites More sharing options...
Laurin Dave Posted September 15, 2020 Share Posted September 15, 2020 Marvellous image Goran.. but could you slow down a bit please .... what's it going to be like for the rest of us when you've got all three systems running!! Dave Link to comment Share on other sites More sharing options...
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