Comet C/2017 T2 (PANSTARRS) - 2019-12-05 with animation (Jonathan W MacCollum)

Comet C/2017 T2 (PANSTARRS) - 2019-12-05 with animation

Comet C/2017 T2 (PANSTARRS)

* Comet data Captured on the night of December 05th 2019

* Magnitude 10.1

* Constellation: Perseus

* Star Data captured the next night December 06th 2019

Thursday night I decided to give another go at a Comet... first time imaging a comet with a monochrome camera, so I decided to just take RGB data and took 60s subs looping each Red, Green and Blue filters. I guided on a star for about 2 hours and 28 minutes (until it reached the meridian.) The bright blue star is HD29771, an 8th magnitude star and the bright yellow one is HD29827, a 6th magnitude star. The comet navigated from it's location in the image between these two bright stars up upwards and to the left throughout the session.

The image is a composite of "star data" that was taken the following night when the comet was no longer in frame and "comet data" that was aligned using the "Comet Align" process in PixInsight. The "star data" was subtracted via this process as part of comet-alignment and integrated to create the "Comet Only" image.

The "Comet Only" image and "Star Data" images were processed independently and stretched. The two images were combined by subtracting the median of the comet data from the star data and then adding the two images together: ```Stars-0.06+Comet. No "comet masks" were used when adding the data together and this image serves to best represent the significant data from both images across the entire field. This is why there are comet-stacking artifacts from the stars throughout the field.

Constructive Criticism and Feedback is really appreciated as I really want to improve!

Final
Original
B
C

B

Description: Comet-aligned stacked image

Uploaded: ...

C

Description: Animated gif of Red frames

Uploaded: ...

ZWO ASI183/QHY183
/r/astrophotography
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Status	Advanced success
Started	...
Astrometry.net job	3110055
PixInsight job	OG8KBJV9U1HSZQ8YF6BWIP73BIQ6J5ZH
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	04h43m54s.189
RA (top/left)	04h42m16s.638
RA (top/right)	04h42m46s.779
RA (bottom/right)	04h45m30s.315
RA (bottom/left)	04h45m02s.541

Dec (center)	+48°14′56″.60
Dec (top/left)	+48°34′29″.10
Dec (top/right)	+47°52′12″.21
Dec (bottom/right)	+47°55′18″.99
Dec (bottom/left)	+48°37′38″.40

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