wimvb Posted January 27 Share Posted January 27 ngc4236 is a spiral galaxy in Draco, situated about 15 million lightyears distant. This galaxy is rarely imaged with addition of Ha, so I thought I'd give that a go. So far 3 hours of RGB, 2 hours Ha and 3 hours L Gear: SW 190MN with ASI294MM camera Processed in PI The colour data is still quite thin, and I plan to at least double what I already have, as soon as it clears up. 15 Link to comment Share on other sites More sharing options...
ONIKKINEN Posted January 27 Share Posted January 27 Looking good already! The outer parts are seriously faint, i have over 20 hours on it and honestly its still not very good looking. With an OSC and mostly under Moonlight though so not the best combination. 1 Link to comment Share on other sites More sharing options...
wimvb Posted January 27 Author Share Posted January 27 24 minutes ago, ONIKKINEN said: Looking good already! The outer parts are seriously faint, i have over 20 hours on it and honestly its still not very good looking. With an OSC and mostly under Moonlight though so not the best combination. It certainly is faint. Some time ago, @gorann caught this galaxy "by accident" as he was hunting for planetary nebulae with his RASA. RASA makes it look so easy. 😉 https://www.astrobin.com/p7ycko/B/ 1 Link to comment Share on other sites More sharing options...
ONIKKINEN Posted January 27 Share Posted January 27 14 minutes ago, wimvb said: It certainly is faint. Some time ago, @gorann caught this galaxy "by accident" as he was hunting for planetary nebulae with his RASA. RASA makes it look so easy. 😉 https://www.astrobin.com/p7ycko/B/ Oh no the horror of accidental galaxy imaging... Speaking of that, there is a cluster of fairly distant and reddish galaxies nicely to the right from the top of NGC4236 that are already making an appearance in your image. I forget what the distances were as it was a while ago i last dumped hours on this but it may have been up to a billion ly. Link to comment Share on other sites More sharing options...
wimvb Posted January 27 Author Share Posted January 27 (edited) 2 hours ago, ONIKKINEN said: may have been up to a billion ly. 2 billion, or 680 Mpc. I had already checked. There are several other galaxies, but there isn't any information besides a catalogue number. Edited January 27 by wimvb Link to comment Share on other sites More sharing options...
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