2019y4 20200407 0000 nhaig

C/2019Y4. An hour of 610 longpass data from this eve, 12" Newtonian, ASI1600MM. Very good seeing. I'm tired so take the following with a pinch of salt.

0.7"/pix. The second image has been sharpened using iterative gaussian. I usually find this to be a very reliable sharpening method and artifacts I do get tend to be predictable. So the 'double' nucleus/concentration in the sharpened image (like the bar previously mentioned) might be real. At ~4 pixels apart, that's 3". Looks to be another bright patch trailing too?

Image 2.6' wide.

 10sec subs. 22:29 to 00:35 UT 6-7/4/20.