SL-17 (The Dark Wolf Nebula in HaRGB) (Philip Herbst)

Celestial hemisphere: Southern · Constellation: Scorpius (Sco) · Contains: HD151550 · HD151708 · HD151892 · HD151966 · HD152161 · HD152335 · HD152491 · HD152540 · HD152742 · HD326238 · PK342-00.1

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SL-17 (The Dark Wolf Nebula in HaRGB)

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SL-17 (The Dark Wolf Nebula in HaRGB)

A pretty interesting looking dark nebula against a sea of Hydrogen alpha emission, located in Scorpius. I have seen some beautiful examples recently on Astrobin, which inspired me to try my own version. Photographed over 3 nights, 5-7 June. The RGB data is unfortunately from a Bottle 7-8 transition zone (front garden of my home, Cape Town suburb) but the HA is so dominant in this area, I ended up using the RGB mostly for star colour. After struggling with my current flat frames I retook them for the RGB data which made a really big difference. Processing the data after that was a real pleasure.

Esprit 100. F5.5
ASI 1600 MM pro
Avalon Linear FR

R, G and B: 65 x 40s each
HA: 205 x 300s each

Total integration time: 19.2 hrs

Southern Hemisphere Astro

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Status	Advanced success
Started	...
Astrometry.net job	5858948
PixInsight job	W79JLUT7NPIGI0C73VSL3B2G3DIAXSV6
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h53m36s.82
RA (top/left)	16h48m35s.21
RA (top/right)	16h50m19s.40
RA (bottom/right)	16h58m42s.64
RA (bottom/left)	16h56m50s.10

Dec (center)	-43°25′21″.8
Dec (top/left)	-43°03′21″.0
Dec (top/right)	-44°12′34″.6
Dec (bottom/right)	-43°46′33″.7
Dec (bottom/left)	-42°37′43″.9

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SL-17 (The Dark Wolf Nebula in HaRGB)

SL-17 (The Dark Wolf Nebula in HaRGB)

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SL-17 (The Dark Wolf Nebula in HaRGB)

SL-17 (The Dark Wolf Nebula in HaRGB)

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