Comet Johnson V2
in the Evening sky
June 15, 2017

 This comet changes subtlety every time I image it. The dust spike, pointing roughly sun ward is now starting to broaden out and is still yellowish in hue. But to the lower right the very faint gas tail is starting to fan out a bit, and is very difficult to record well. But the teal color of the coma and central areas is still very strong, and the comet shows a sharp central condensation. This field is full of galaxies. There are several nice edge on types just under the comet head.

 Click here for a larger 1290 sized image

Field here is about 1 degree
Lens: 10" f/3.9 Orion Astrograph with Baader MPCC coma corrector Platform: Astrophysics AP1200 Camera: SBIG ST10XME Exposure: 62m LRGB 50:4:4:4 Location: Payson, Arizona Elevation: 5150 ft. Sky: Seeing 4/10, Transparency 6/10 Outside Temperature: 60F Processing Tools: Maxim DL, Photoshop CS2 HOME GALAXIES EMISSION NEBS REFLECTION NEBS COMETS GLOBULARS OPEN CLUST PLANETARIES LINKS