July 20, 2020: Better stack of my latest NEOWISE data

[michael.h.f.wilkinson]

Stacked 20 subs of 30s, taken with the Canon EOS 80D and Sigma 50-100 mm F/1.8 lens at 100 mm and F/1.8, ISO 200. Stacking, LP and gradient removal, and star colour calibration in APP, colour noise reduction in FITSwork, and final tweaks with curves in Gimp.

Tried stacking all 50 subs in DSS in comet + stars mode, but the result was dismal. Will have to work on my own code later

 

[Sunshine]

I’m curious, the very straight streak coming off the core, far left, is that part of the tail or a photographic anomaly?. Wondering because the majority of matter is being blown to the right yet, that portion holds straight, not sure how that would be possible.

Edited July 21, 2020 by Sunshine

[michael.h.f.wilkinson]

4 minutes ago, Sunshine said:

I’m curious, the very straight streak coming off the core, far left, is that part of the tail or a photographic anomaly?. Wondering because the majority of matter is being blown to the right yet, that portion holds straight, not sure how that would be possible.

The straight, blueish streak is the gas or ion tail, the more yellow-white tail is the dust tail. The heavier dust grains aren't blown away as fast as the light ions, so the dust tail lags along the orbit of the comet

[iwols]

looks good to me michael

[Sunshine]

1 hour ago, michael.h.f.wilkinson said:

The straight, blueish streak is the gas or ion tail, the more yellow-white tail is the dust tail. The heavier dust grains aren't blown away as fast as the light ions, so the dust tail lags along the orbit of the comet

Fantastic closeup, Thanks for the info.