IC63 Ghost of Cassiopeia, IC 59 (with starless bonus track) (Mau_Bard)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 27 gam Cas · IC 59 · IC 63 · LBN 620 · LBN 622 · LBN 623 · LBN 625 · Sh2-185 · The star Navi (γCas) · gamma Cas nebula

IC63 Ghost of Cassiopeia, IC 59 (with starless bonus track)

Image taken in dual narrow-band the nights of 24-25-26 September and mostly the night of 1 October 2021. Exposure time was limited by the bad weather conditions.

IC 63 is about 550 light-years from Earth. The nebula is classified as both a reflection nebula — as it is reflecting the light of the nearby (3-4 ly) Gamma Cassiopeiae star — and as an emission nebula — as it releases hydrogen-alpha radiation. The radiation of this star is also slowly causing the nebula to dissipate.

The object was discovered by Isaac Roberts in 1890.
Close to it is IC59, partially framed in the low left corner of the image.

The above mentioned Gamma Cassiopeiae is a blue-white subgiant variable star surrounded by a gaseous disc.
It is 19 times more massive and 65,000 times brighter than our Sun.
It rotates more than 200 times faster than our parent star. This frenzied rotation gives it a squashed appearance. The fast rotation causes eruptions of mass from the star into a surrounding disk. This mass loss is related to the observed brightness variations.

Final
Original
C
D

C

Description: Closeup

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D

Description: Starless

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Sharpless2 Objects
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Light Polluted skies
ZWO ASI 2600MC PRO
Broadband under Bortle 7/8/9
Imaged with N.I.N.A.
N.I.N.A. Users
Imagers of Italy
Musical Imagers
Optolong L-eXtreme filter
Suburban Astrophotography
PixInsight Addicts

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Status	Advanced success
Started	...
Astrometry.net job	5220709
PixInsight job	NY50W7WKSOJ10SJO1TI9NRX2O2E4M900
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h59m52s.641
RA (top/left)	00h54m39s.895
RA (top/right)	01h05m03s.470
RA (bottom/right)	01h05m13s.990
RA (bottom/left)	00h54m33s.792

Dec (center)	+60°58′21″.34
Dec (top/left)	+60°33′20″.38
Dec (top/right)	+60°32′54″.32
Dec (bottom/right)	+61°22′39″.70
Dec (bottom/left)	+61°23′03″.26

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IC63 Ghost of Cassiopeia, IC 59 (with starless bonus track)

IC63 Ghost of Cassiopeia, IC 59 (with starless bonus track)

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IC63 Ghost of Cassiopeia, IC 59 (with starless bonus track)

IC63 Ghost of Cassiopeia, IC 59 (with starless bonus track)

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