Caldwell 109 (NGC3195) - Planetary nebula in Chamaeleon (James Tickner)

Celestial hemisphere: Southern · Constellation: Chamaeleon (Cha) · Contains: HD89144 · NGC 3195 · PGC 226362 · PK296-20.1

Caldwell 109 (NGC3195) - Planetary nebula in Chamaeleon

The southernmost Caldwell object, C109 is a small but reasonably bright planetary nebula discovered by Sir John Herschel in 1835. I took advantage of a slightly hazy but very still night with a bright moon to target this object.

Given its small size (40 x 35") and the small aperture of my scope (4 inches) I had to deploy a few tricks I haven't tried before. First, a x2 drizzle was used to increase the image scale, and then Registax was used to apply wavelet-based image sharpening that I'd normally use for planetary imaging. I was pretty happy with the results, with the hydrogen emission showing some nice structures and shells.

HSO image with RGB stars.

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Title: C109 - zoom

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80° South

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Status	Advanced success
Started	...
PixInsight job	KZI0WB4REQJUEB1QPA6W389RVNHP114F
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	10h09m18s.386
RA (top/left)	10h08m00s.433
RA (top/right)	10h17m27s.769
RA (bottom/right)	10h10m32s.931
RA (bottom/left)	10h01m01s.183

Dec (center)	-80°51′50″.62
Dec (top/left)	-81°11′38″.56
Dec (top/right)	-80°47′10″.28
Dec (bottom/right)	-80°32′00″.29
Dec (bottom/left)	-80°55′50″.41

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Caldwell 109 (NGC3195) - Planetary nebula in Chamaeleon

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Caldwell 109 (NGC3195) - Planetary nebula in Chamaeleon

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