SH2-180 (Roland Schliessus)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: Sh2-180

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SH2-180

Link: http://www.roland-schliessus-astro.de/

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SH2-180

Link: http://www.roland-schliessus-astro.de/

SH2-180 is an emission nebula visible in the constellation Cassiopeia. It is located in the northwestern part of the constellation, approximately 2° ENE of the star κ Cassiopeiae; the most suitable period for its observation in the evening sky falls between the months of August and January and is considerably easier for observers located in the regions of the Earth's northern hemisphere, where it is circumpolar up to the warm temperate regions. Being at a distance of approximately 6100 parsecs (approximately 19900 light years), Sh2-180 is found on the Swan Arm, therefore beyond the large complexes linked to the OB associations visible in Cassiopeia, which almost all fall into the innermost arm of Perseus. It is believed that LS I +62 139, a blue main sequence star with spectral class O7.5V, is responsible for the ionization of its gases; estimates of its distance indicate for this star a value of 5150±1300 parsecs, which although smaller than the estimate of 6100 parsecs, is not very inconsistent with it given the considerable margin of uncertainty. Beyond these data, the nebula seems to have been little studied and its filamentary appearance, which resembles that of a supernova remnant, raises other questions.

====================== Source: Wikipedia ==========================

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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	8711570
PixInsight job	01J5Y0N2VMJAE0CZKUA98X4AQPITVDKK
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h48m52s.183
RA (top/left)	00h46m51s.775
RA (top/right)	00h48m20s.777
RA (bottom/right)	00h50m51s.380
RA (bottom/left)	00h49m24s.218

Dec (center)	+62°58′41″.43
Dec (top/left)	+63°07′56″.44
Dec (top/right)	+62°42′35″.87
Dec (bottom/right)	+62°49′19″.64
Dec (bottom/left)	+63°14′46″.16

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