SH2-308 Dolphin nebula HOO with RGB stars (Gasmanwill)

Celestial hemisphere: Southern · Constellation: Canis Major (CMa) · Contains: 16 CMa) · 16 omi01 CMa · HD50646 · HD50680 · HD50740 · HD50781 · HD50804 · HD50853 · HD50896 · HD51013 · HD51036 · HD51229 · LBN 1052 · Sh2-308 · The star Udra (ο1 CMa

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SH2-308 Dolphin nebula HOO with RGB stars

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SH2-308 Dolphin nebula HOO with RGB stars

The Dolphin nebula
HOO with rgb stars
24.5 hrs integration
52 x1000s for Oiii
36x1000s for Ha
24.5hrs
30x300s each for rgb
7.5hrs

Blown by fast winds from a hot, massive star, this cosmic bubble is huge. Cataloged as Sharpless 2-308 it lies some 5,000 light-years away toward the constellation of the Big Dog (Canis Major) and covers slightly more of the sky than a Full Moon. That corresponds to a diameter of 60 light-years at its estimated distance. The massive star that created the bubble, a Wolf-Rayet star, is the bright one near the center of the nebula. Wolf-Rayet stars have over 20 times the mass of the Sun and are thought to be in a brief, pre-supernova phase of massive star evolution. Fast winds from this Wolf-Rayet star create the bubble-shaped nebula as they sweep up slower moving material from an earlier phase of evolution. The windblown nebula has an age of about 70,000 years. Relatively faint emission captured by narrowband filters in the deep image is dominated by the glow of ionized oxygen atoms mapped to a blue hue. Presenting a mostly harmless outline, SH2-308 is also known as The Dolphin-head Nebula

https://science.nasa.gov/sh2-308-dolphin-head-nebula

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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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Status	Advanced success
Started	...
Astrometry.net job	7077271
PixInsight job	4OY5WRF6L5Z4V2IPWH8M4VB1VUVT2R94
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h54m21s.10
RA (top/left)	06h52m18s.24
RA (top/right)	06h56m16s.26
RA (bottom/right)	06h56m22s.45
RA (bottom/left)	06h52m27s.70

Dec (center)	-23°54′41″.6
Dec (top/left)	-24°33′29″.8
Dec (top/right)	-24°34′39″.1
Dec (bottom/right)	-23°15′53″.2
Dec (bottom/left)	-23°14′41″.10

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SH2-308 Dolphin nebula HOO with RGB stars

SH2-308 Dolphin nebula HOO with RGB stars

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SH2-308 Dolphin nebula HOO with RGB stars

SH2-308 Dolphin nebula HOO with RGB stars

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