Comet C/2017 K2 (PanSTARRS) passing M10 (Michael Southam)

Celestial hemisphere: Southern · Constellation: Ophiuchus (Oph) · Contains: HD152484 · HD152555 · HD152600 · HD152833 · HD152906 · HD152997 · HD153035 · HD153116 · HD153167 · HD153228 · HD153240 · HD153274 · HD153325 · HD153348 · HD153437 · HD153479 · M 10 · NGC 6254

Comet C/2017 K2 (PanSTARRS) passing M10

I read an article early in the day about how the public could see Comet K2. When I looked up the comet's current location in SkySafari, I was amazed to see that it would be flying past M10 at a perfect time to catch the pair together that night. This was exciting as I've wanted to catch a comet fly past another object for a while so couldn't miss the opportunity to catch the pair together. Add on to that a clear sky and I have no hesitation adding this to the lucky imaging category. The only difficult part was contending with a full moon and the nasty gradient it provided. I wrote an APT imaging script that would have imaged the pair from the end of astronomical twilight until dawn but Windows had other ideas. I set the script going and went to bed. In the morning I was not too pleased to see the script had stopped at midnight when windows decided to update and reset the computer. I thought I had disabled that dumb feature. Mr Gates is getting the bill when my camera is damaged by being reset without being warmed. I would have liked more data but I will have to make do with the hour or so I managed before the reset.

Stacking was done loosely following Visible Dark's PI Comet Stacking workflow. Align on stars, Align on Comet but then I switched to PhotoShop to combine the 2 images. Many imagers were able to catch the comet's green glow and some a second ion tail 90 degrees to the main tail. Not sure if it was my use of the LPro filter but I caught neither.

Skywatcher Esprit ED Super APO Triplet
AstroBin Platform open discussions community forum
Imaged with APT
Optolong L-Pro filter
ZWO ASI 2600MC PRO
Northeast Imagers

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Status	Advanced success
Started	...
Astrometry.net job	6079955
PixInsight job	DL0RULHDUAS5JGLVWM13YCZJYHV84HBN
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h57m00s.19
RA (top/left)	16h59m54s.83
RA (top/right)	17h00m25s.96
RA (bottom/right)	16h54m04s.80
RA (bottom/left)	16h53m33s.78

Dec (center)	-03°50′36″.8
Dec (top/left)	-05°04′34″.10
Dec (top/right)	-02°41′39″.2
Dec (bottom/right)	-02°36′34″.5
Dec (bottom/left)	-04°59′30″.10

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Comet C/2017 K2 (PanSTARRS) passing M10

Comet C/2017 K2 (PanSTARRS) passing M10

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Comet C/2017 K2 (PanSTARRS) passing M10

Comet C/2017 K2 (PanSTARRS) passing M10

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