Soul Nebula #1 (Molly Wakeling)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: HD17086 · HD17356 · HD17505 · HD17520 · HD17688 · HD17911 · HD17971 · HD237000 · HD237007 · HD237011 · HD237015 · HD237016 · HD237018 · HD237019 · HD237023 · HD237034 · HD237036 · IC 1848 · IC 1871 · LBN 667 · LBN 669 · LBN 670 · LBN 672 · LBN 673 · LDN · PGC 2797273 · PGC 2797281 · Sh2-199

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Soul Nebula #1

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Soul Nebula #1

I know it's been a minute, but here's another deep sky photo -- the Soul Nebula!

I've imaged its companion, the Heart Nebula, a couple of times, but I finally made it to the Soul! Actually, I started imaging it in spring of 2022, and then finally finished in January of this year!
The Soul Nebula is a large emission nebula in the constellation Cassiopeia, which is mainly up in the wintertime. The cloud of gas and dust has a large cavity carved out in the middle by the radiation of hot, young stars. It lies about 6,500 lightyears away and spans 150 lightyears.

This is a false-color image using what's called the Hubble Palette, where I've imaged narrow slices of the light spectrum around hydrogen, oxygen, and sulfur gaseous emissions and assigned sulfur to red, hydrogen to green, and oxygen to blue. In reality, both sulfur and hydrogen primarily glow a deep red, but in order to distinguish them (and make a visually interesting image), different colors are assigned. Oxygen glows a blue-green, so that's actually about naturally-colored here. You can also see streams and globs of dark nebulae, which are made up of light-absorbing molecular dust. The total exposure time is over 33 hours!

Women Astrophotographers

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Status	Advanced success
Started	...
Astrometry.net job	9869596
PixInsight job	0G1M9UT4CRQGJ8ZLT707750THF0IS62X
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h52m23s.26
RA (top/left)	02h58m52s.61
RA (top/right)	02h45m49s.31
RA (bottom/right)	02h46m09s.19
RA (bottom/left)	02h58m40s.56

Dec (center)	+60°24′17″.7
Dec (top/left)	+61°05′54″.4
Dec (top/right)	+61°05′15″.2
Dec (bottom/right)	+59°41′20″.4
Dec (bottom/left)	+59°42′10″.9

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Soul Nebula #1

Soul Nebula #1

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Soul Nebula #1

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