The Ghost of Cassiopeia - IC 63 & 59 (Luca Marinelli)

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

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The Ghost of Cassiopeia - IC 63 & 59

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The Ghost of Cassiopeia - IC 63 & 59

Gamma Cassiopeiae or Navi is a blue-white, sub-giant, eruptive variable star with a magnitude that changes between +1.6 and +3.0 erratically. Both Navi and the reflection-emission nebula IC 63 are located at a distance of roughly 550 light years from us. The Ghost of Cassiopeia (IC 63) and its neighbor IC 59 are rich in hydrogen and glow red due to the intense ultraviolet radiation from Gamma Cass. The blue signal from the nebula is indicative of presence of cold interstellar dust, which reflects the strong light from Navi.

This image is a first light with the ZWO ASI294MC Pro for me. The camera has impressive dynamic range and was able to tame Gamma Cass with no ugly sensor pattern and very little in terms of reflections. After I finished processing the RGB data, I decided I wanted to pull more detail from the Ha nebulosity and collected an additional 5 hours of data with the Ha filter and a mono camera. Ha data was used to strengthen the red channel and to improve the detail in the luminance channel.

ZWO ASI294MC Pro @ -15C

Gain: 120, Offset: Not set (default)

IDAS LPS-P2 filter

ZWO ASI1600MM Pro @ -20C

Gain:139, Offset: 50

Astrodon Ha 5nm filter

Original
E
Final
F

E

Description: Adjusted Navi brightness and color.

Uploaded: ...

F

Description: Added 5 hours of Ha with the ASI1600 camera. Ha was added both to the red channel and to luminance.

Uploaded: ...

ZWO ASI 294MC PRO
Takahashi Refractors
Northeast Imagers
Cloudy Nights

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Status	Advanced success
Started	...
Astrometry.net job	2925053
PixInsight job	JTNF0E6455V9BT4X9JQKCK7U8N5QA3MP
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	00h59m55s.42
RA (top/left)	00h52m08s.41
RA (top/right)	01h04m26s.68
RA (bottom/right)	01h07m54s.47
RA (bottom/left)	00h55m09s.46

Dec (center)	+60°52′45″.10
Dec (top/left)	+60°29′43″.4
Dec (top/right)	+60°00′57″.9
Dec (bottom/right)	+61°14′05″.8
Dec (bottom/left)	+61°43′57″.8

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The Ghost of Cassiopeia - IC 63 & 59

The Ghost of Cassiopeia - IC 63 & 59

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Image Index:

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The Ghost of Cassiopeia - IC 63 & 59

The Ghost of Cassiopeia - IC 63 & 59

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