IC59 and IC63 two nearby arc-shaped nebula associated with the extremely luminous star Gamma Cassiopeia. They are a combination of emission and reflection nebula.
IC59, centered just 20′ north of Gamma Cassiopeia, is very faint, diffuse, and elongated N-S. It is primarily a reflection nebula, appearing blue in photographs because it scatters starlight. It appears larger but fainter than IC63. Together, IC59 and IC63 are designated as Sh2-185.
About 600 light years away, the intense bath of radiation from Gamma Cassiopeia is evaporating its two nearby neighbors. The leading edges of IC59 and IC63 glow strongly, hinting that these clouds will soon be blown away into the interstellar medium.
(quoted from SkySaffari6)

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Date and Place

2021-Nov-25, 26, 27, 29
Fujigane Remote Observatory, Yamanashi, Japan

Scope Takahashi Epsilon180ED + BetaSGR Focuser
Mount Skywatcher EQ8
Camera ZWO ASI6200MM-Pro : -15[deg-c]
Auto guiding QHY mini guide scope + ZWO ASI120

Astrodon Tru-balance Gen.2 E-series LRGB Filter
Astrodon Ha 5[nm] Filter

Exposure Epsilon180ED + ASI6200MM-Pro
L : 17×600[s], R : 8×600[s], G :8×600[s], B : 8×600[s]
, Ha: 14×900[s]
Total :620[min] = 10.3[hr]

Astroart8 with SHS Version 7.6 Build 89
PHD Guiding 2.6.10
Pixinsight 1.8.8-11
Photoshop CC 2022