Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  27 Cas)  ·  IC 59  ·  IC 63  ·  The star Navi (γ Cas
SH2-185 - Cassiopeia's Ghost, Tal Ny
SH2-185 - Cassiopeia's Ghost
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SH2-185 - Cassiopeia's Ghost

SH2-185 - Cassiopeia's Ghost, Tal Ny
SH2-185 - Cassiopeia's Ghost
Powered byPixInsight

SH2-185 - Cassiopeia's Ghost

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Description

IC63 (the bright, pointed object) and IC59 (the weaker object) are commonly called Sharpless 2-185 (Sh 2-185). Both are illuminated by the B0 IV star Gamma Cas. Both nebulae are near this ionizing star, but have very different visual appearances. IC63 can be described as a "comet cloud", refers to gamma cas and is narrower and sharper defined than IC59. Spectral measurements indicate that IC59 at 590K is slightly cooler and less dense than IC63 at 630K. Both are not separate nebulae, but part of a much larger nebulous region surrounding Gamma Cas.

(Source of description: http://www.sternwarte-baerenstein.de/sh2-185-en.html)

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SH2-185 - Cassiopeia's Ghost, Tal Ny