Sh2 175 H-alpha RGB (Jerry Yesavage)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: Sh2-175

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Sh2 175 H-alpha RGB

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Sh2 175 H-alpha RGB

One more of the smaller (2"x2") Sharpless2 objects.

Information from:

http://galaxymap.org/cat/list/sharpless/171

Sh 2-175 appears in the direction of a supershell of molecular and atomic hydrogen clouds surrounding the Cas OB5 association, which is part of the Perseus arm. A widely varying range of distances to this nebula and its potential ionising star has been published in the scientific literature.

Avedisova gives the ionising star of Sh 2-175 as LS I +64 26 (O9.5 V), which Humphreys lists as a field star outside of any OB association.

Russeil concludes that LS I +64 26 is actually a B1.5 V star at 1090 +/- 210 parsecs and locates Sh 2-175 at this much closer distance.

You can read more about this region (with full references) in this galactic plane commentary (see the above web site).

Sharpless2 Objects
The refractors!
Cloudy Nights
SF Bay Area Imagers
Members of Deep Sky West
Planetary Nebulae
"Simply Stellarvue"
Suburban Astrophotography
Narrowband imaging

Planetary Nebulae
Sharpless2 Objects

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Status	Advanced success
Started	...
Astrometry.net job	2966874
PixInsight job	F10O2Y2UN8883JCVEXAOCYK8SZODO7ST
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	00h27m16s.918
RA (top/left)	00h28m21s.875
RA (top/right)	00h26m12s.165
RA (bottom/right)	00h26m12s.486
RA (bottom/left)	00h28m21s.125

Dec (center)	+64°42′19″.65
Dec (top/left)	+64°48′51″.51
Dec (top/right)	+64°48′52″.31
Dec (bottom/right)	+64°35′46″.42
Dec (bottom/left)	+64°35′44″.71

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Sh2 175 H-alpha RGB

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Sh2 175 H-alpha RGB

Sh2 175 H-alpha RGB

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