Sh2-211 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Perseus (Per) · Contains: Sh2-211

Sh2-211

This object, also known as LBN 717, is a tiny HII region located about 24000 light years away in the constellation of Perseus at a declination of +51 degrees. It is one of the furthest Sharpless images from us. This nebula spans 2.5 arc-minutes in our apparent view, which corresponds to a width of 18 light years.

The ionizing star cluster at center is [BDS2003] 66. The dark clouds of Barnard 20 surround the nebula. I like the crisply defined gas front arcs which frame the nebula top and bottom.

This object is the 211th entry in the Sharpless catalog. This catalog, published in 1959 by Stewart Sharpless of the United States Naval Observatory, identifies 313 ionized gas cloud HII regions north of -27 degrees declination.

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CMOS Imagers
Cloudy Nights
Schmidt-Cassegrain Telescope (SCT) Imagers
Texas Astronomy
Images from the EdgeHD Series
ZWO ASI294MM Pro Images
Sharpless2 Objects

HII-Dominated Nebulae
Sharpless Catalog (200/313)

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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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Status	Advanced success
Started	...
Astrometry.net job	4377966
PixInsight job	2C1L9S0RTJU8BIT7XZ9T3RILNOFYQDNE
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	04h36m50s.171
RA (top/left)	04h37m27s.973
RA (top/right)	04h36m10s.399
RA (bottom/right)	04h36m12s.509
RA (bottom/left)	04h37m29s.824

Dec (center)	+50°52′48″.11
Dec (top/left)	+50°57′05″.77
Dec (top/right)	+50°56′37″.73
Dec (bottom/right)	+50°48′29″.82
Dec (bottom/left)	+50°48′57″.71

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