Bubble Nebula - NGC 7635 (Tom Wildoner)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: Bubble Nebula · HD220057 · LBN 548 · LBN 549 · LDN 1231 · NGC 7635 · Sh2-162

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Bubble Nebula - NGC 7635

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Bubble Nebula - NGC 7635

From Wikipedia: “NGC 7635, also known as the Bubble Nebula, Sharpless 162, or Caldwell 11, is an H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, SAO 20575. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow.”

This is a 2 hour and 35 minute combined exposure and processed in PixInsight in the Hubble palette.

Observation data:J2000 epoch
Right ascension: 23h 20m 48.3s
Declination: +61° 12′ 06″
Distance: 7100 to 11000 ly
Apparent magnitude (V): ~10
Apparent dimensions (V): 15′ × 8′
Constellation: Cassiopeia

Tech Specs: Sky-Watcher Esprit 120ED Telescope, ZWO AS2600mc-Pro running at 0C, Sky-Watcher EQ6R-Pro mount, Optolong L-eXtreme filter (2”), 31 x 300 second exposures, guided using a ZWO 30mm f/4 mini guide scope and ZWO 120 Mini, focus with a ZWO EAF, controlled with a ZWO ASIAir Pro. Processed using PixInsight and DSS. Image Date: August 31, 2022. Location: The Dark Side Observatory, Weatherly, PA, USA (Bortle Class 4).

Northeast Imagers
The refractors!

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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.

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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	6282404
PixInsight job	71K7TCAOW5M6S3Z5R7X52XY9EX668YM1
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h20m37s.342
RA (top/left)	23h24m17s.190
RA (top/right)	23h22m49s.190
RA (bottom/right)	23h16m52s.238
RA (bottom/left)	23h18m29s.953

Dec (center)	+61°11′12″.40
Dec (top/left)	+60°51′03″.50
Dec (top/right)	+61°40′39″.11
Dec (bottom/right)	+61°30′59″.99
Dec (bottom/left)	+60°41′41″.90

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Bubble Nebula - NGC 7635

Bubble Nebula - NGC 7635

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Bubble Nebula - NGC 7635

Bubble Nebula - NGC 7635

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