Sh2-308 The Dolphin Head Nebula (Shane23)

Celestial hemisphere: Southern · Constellation: Canis Major (CMa) · Contains: 16 CMa) · 16 omi01 CMa · HD50154 · HD50212 · HD50232 · HD50259 · HD50260 · HD50304 · HD50352 · HD50375 · HD50394 · HD50425 · HD50465 · HD50492 · HD50493 · HD50535 · HD50563 · HD50590 · HD50591 · HD50646 · HD50679 · HD50680 · HD50710 · HD50711 · HD50740 · HD50779 · HD50781 · HD50804 · HD50826 · HD50852 · And 45 more.

Sh2-308 The Dolphin Head Nebula

The nebula was formed about 70,000 years ago by the Wolf–Rayet star EZ Canis Majoris throwing off its outer hydrogen layers, revealing inner layers of heavier elements.=10.5px Fast stellar winds, blowing at 3.8 million mph ( now that's fast! ) from this star, create the bubble-shaped nebula as they sweep up slower moving material from an earlier phase of the star's evolution. The hydrogen composing the nebula is ionised by intense ultraviolet radiation. The nebula is approximately 60 light-years across at its widest point.
There's the science stuff that I copied and pasted from the internet. Very interesting, but on a bit more of a personal note... This has always been one of my favorite nebula. The colors, shape, details in the "head" have always intrigued me. Something so incredibly huge, caused by something so powerful, to create something so elegant and beautiful. It's just staggering... for a lack of a better expression. It amazes me that these lie in the night sky waiting for us to gaze upon them, to capture the photons and share with our family, friends, and astro community. So here it is, I share this with you.
I collected around 30 hrs. of data with this image, yet was only able to use around 9 hrs. The weather has been very trying lately to say the least. A combo of wind, clouds, and the neighborhood lights as this target is quite low brought the numbers down quite a bit. I want to add a lot more data including LRGB to this. Unless the weather makes a drastic turn, it will have to wait until next time.

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
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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
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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.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	9211204
PixInsight job	BTH5V5UT9SAKVM6Y9B895F6M7M5M4S59
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h54m30s.414
RA (top/left)	06h50m55s.410
RA (top/right)	06h50m48s.1000
RA (bottom/right)	06h58m10s.123
RA (bottom/left)	06h58m07s.841

Dec (center)	-23°25′50″.52
Dec (top/left)	-22°09′13″.14
Dec (top/right)	-24°41′48″.74
Dec (bottom/right)	-24°42′09″.25
Dec (bottom/left)	-22°09′33″.64

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Sh2-308 The Dolphin Head Nebula

Sh2-308 The Dolphin Head Nebula

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Sh2-308 The Dolphin Head Nebula

Sh2-308 The Dolphin Head Nebula

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