Sonyme Posted November 17, 2020 Share Posted November 17, 2020 I snapped a few images of Comet 2020 F3 Neowise back in July. The head of the comet appears to have blue/green colouration whilst its tail is a diffuse white. Is this the true colour of the comet or an aberration caused by my camera (Cannon 60D - unmodified) or the atmosphere? Quote Link to comment Share on other sites More sharing options...
Wyvern Posted November 17, 2020 Share Posted November 17, 2020 That sounds about right to me. I would expect a blue/green hue. Quote Link to comment Share on other sites More sharing options...
RPK_Astro Posted November 17, 2020 Share Posted November 17, 2020 The greenish colour is from molecular carbon. The dust tail tends to be yellowish. The colour/s of the ion tail depends on what is being ionised, but blue is the commonest. Quote Link to comment Share on other sites More sharing options...
Sonyme Posted November 18, 2020 Author Share Posted November 18, 2020 Thank you for the replies. Ron, could the same be said for a fireball or is it simply down to the metals they contained? The back of my house overlooks the lower climes of the pennines which are in a north easterly direction from where I live. On a clear night a couple of years ago whilst looking in this direction, I was lucky enough to see a fireball which was almost grazing the skyline and again it clearly appeared blue / green. Quote Link to comment Share on other sites More sharing options...
Jkulin Posted November 19, 2020 Share Posted November 19, 2020 Yep, sounds about right, here are two images I grabbed of it: -https://cdn.astrobin.com/thumbs/CtsHCbvCAJWa_1824x0_kWXURFLk.jpghttps://cdn.astrobin.com/thumbs/KleDHnZ0F-F8_1824x0_LeGaXsse.jpg 2 Quote Link to comment Share on other sites More sharing options...
Gina Posted November 19, 2020 Share Posted November 19, 2020 Great images John ? 1 Quote Link to comment Share on other sites More sharing options...
Jkulin Posted November 19, 2020 Share Posted November 19, 2020 Thanks Gina, I was lucky with those two, just a single shot grabbed on my Sony A7RIII, the light pollution one was the real bonus ? Quote Link to comment Share on other sites More sharing options...
TerryMcK Posted November 19, 2020 Share Posted November 19, 2020 The pictures I took of Neowise C2020 F3 with my regular day to day unmodded DSLR were also the colours you described so that must have been the characteristic of that particular comet.Also superb results with your shots John. 2 Quote Link to comment Share on other sites More sharing options...
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