vdB 117 (Gary Imm)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: VdB117

vdB 117

This Astrobin Debut Object is a faint blue reflection nebula located 6000 light years away in the constellation of Sagittarius at a declination of -17 degrees. It is about 1 degree north of M24.

At 6000 light years away, this object is one of the furthest of the vdB nebulae.

vdB 117 spans 2 arc-minutes in our apparent view. This corresponds to a width of 4 light years.

This nebula appears asymmetric around the 9.1 magnitude bluish source star HD 167143. Like many of these end-of-catalog vdB objects, this one is rated a 0 on the imaging scale (0 to 5) of my Compendium.

Sidney van den Bergh published his vdB catalog of reflection nebulae in 1966. It was later expanded by one for a total of 159. The collection encompassed all reflection nebulosity visible on the Palomar Sky Survey north of -33 degrees latitude. My complete Astrobin vdB Collection is here.

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Status	Advanced success
Started	...
PixInsight job	N634NCNSXUHY48INDGZKUJ7JFESPXRXJ
PixInsight queue size	n/a
PixInsight stage	END_TASK

RA (center)	18h14m37s.879
RA (top/left)	18h15m36s.674
RA (top/right)	18h13m39s.130
RA (bottom/right)	18h13m38s.728
RA (bottom/left)	18h15m36s.460

Dec (center)	-17°21′44″.48
Dec (top/left)	-17°10′45″.20
Dec (top/right)	-17°10′38″.35
Dec (bottom/right)	-17°32′45″.93
Dec (bottom/left)	-17°32′49″.26

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