SH2-308 HOO, data from Insight Observatory (Andreas Zeinert)

Celestial hemisphere: Southern · Constellation: Canis Major (CMa) · Contains: 16 CMa) · 16 omi01 CMa · HD49867 · HD49868 · HD49891 · HD49939 · HD49940 · HD49982 · HD50046 · HD50047 · HD50074 · HD50092 · HD50119 · HD50154 · HD50155 · HD50176 · HD50212 · HD50232 · HD50259 · HD50260 · HD50286 · HD50304 · HD50352 · HD50376 · HD50394 · HD50411 · HD50465 · HD50466 · HD50492 · HD50493 · And 80 more.

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SH2-308 HOO, data from Insight Observatory

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SH2-308 HOO, data from Insight Observatory

As this object is difficult to capture from my location, I decided to give it a try with data from Insight Observatory (AFIL9). This is pure HOO processing Red = Ha, Green and Blue = OIII, no mixing of channels or magic formula.Quite a fascinating target. The distance is under debate, around 5000 light years.

Source Wikipedia :
Sh2-308, also designated as Sharpless 308, RCW 11, or LBN 1052, and commonly known as the Dolphin-Head Nebula, is an H II region located near the center of the constellation Canis Major, composed of ionised hydrogen. It is about 8 degrees south of Sirius, the brightest star in the night sky. The nebula is bubble-like and surrounds a Wolf–Rayet star named EZ Canis Majoris. This star is in the brief, pre-supernova phase of its stellar evolution.

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Distribution of astrophotographers

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	Distinct awarded users	Total awarded images
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Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
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Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
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Status	Advanced success
Started	...
Astrometry.net job	7418859
PixInsight job	FZYGT6RFUCB7RMEYIMREVIVJCXX0XLEV
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h54m15s.32
RA (top/left)	06h49m34s.54
RA (top/right)	06h49m17s.71
RA (bottom/right)	06h59m03s.59
RA (bottom/left)	06h59m05s.14

Dec (center)	-23°44′43″.10
Dec (top/left)	-22°12′32″.5
Dec (top/right)	-25°15′17″.8
Dec (bottom/right)	-25°16′46″.6
Dec (bottom/left)	-22°14′01″.9

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SH2-308 HOO, data from Insight Observatory

SH2-308 HOO, data from Insight Observatory

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SH2-308 HOO, data from Insight Observatory

SH2-308 HOO, data from Insight Observatory

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