Sh2-157/C11 The Lobster and the Bubble (Steve Argereow)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: Bubble Nebula · HD218997 · HD219286 · HD219287 · HD219460 · HD219854 · HD220016 · HD220057 · HD220102 · HD220167 · HD220369 · HD240233 · HD240244 · HD240245 · HD240248 · HD240250 · HD240252 · HD240253 · HD240256 · HD240264 · HD240267 · LBN 533 · LBN 536 · LBN 537 · LBN 540 · LBN 543 · LBN 544 · LBN 548 · LBN 549 · LDN 1231 · And 6 more.

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Sh2-157/C11 The Lobster and the Bubble

Powered byPixInsight

Sh2-157/C11 The Lobster and the Bubble

Sh2-157 The Lobster Claw Nebula and C11 The Bubble Nebula

This nebula's Distance from Earth is about 8100 light years and the central emission
area, Sh2-157, has an angular dimension about 60x60 arc minutes. (Full Moon is about
30 arc minutes wide.) The shape of the nebula is coursed by a stellar wind, a radiation
pressure, from several massive young stars. The Bubble is 9,000 light-years.

I did get some elongation of stars at the edges which I believe is caused by
using 1.25" filters and a filter wheel vs a 2" filters.

Telescope: Meade 6000 80mm APO Refractor f/6.0 (480mm Focal Length)
Meade X0.8 Reducer f/4.8 (385mm Focal Length)
Mount IOptron CEM40
Camera ZWOASI6200MC-Pro Temp -10C, Binning 1 x 1, Gain 100 Offset 50
ZWO EFW

94 X 300 Second Exposures W/Optolong L-Extreme Filter (6nm)
30 Dark Frames/20 Flats
Total Integration Time: 7 Hours 50 Minutes
Acquisition with SharpCap
Stacked with Astro Pixel Processor
Stacked with Deep Sky Stacker
Stacked with AutoStakkert
Guiding PHD2
Processed with Astra Image
Photo taken from Seven Lakes, NC Bortle 4.5

AstroBin Platform open discussions community forum
North Carolina Astronomers
Optolong L-eXtreme filter
ZWO ASI 2600MC PRO

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Status	Advanced success
Started	...
Astrometry.net job	6597520
PixInsight job	X5L95LNRVT9Z5MC8B4WQXJKRNX1DDW6T
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h16m16s.73
RA (top/left)	23h22m59s.99
RA (top/right)	23h21m54s.16
RA (bottom/right)	23h09m08s.44
RA (bottom/left)	23h11m00s.65

Dec (center)	+60°19′29″.3
Dec (top/left)	+59°20′17″.1
Dec (top/right)	+61°25′39″.0
Dec (bottom/right)	+61°17′22″.4
Dec (bottom/left)	+59°12′20″.2

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Sh2-157/C11 The Lobster and the Bubble

Sh2-157/C11 The Lobster and the Bubble

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Sh2-157/C11 The Lobster and the Bubble

Sh2-157/C11 The Lobster and the Bubble

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