Abell 85 / CTB1 (pete_xl)

Abell 85 / CTB1

Abell 85 is a supernova remnant in Cassiopeia. It is also a radio source (CTB-1). Abell 85 is a quite a dark object that emits light in the emission colors of hydrogen (Ha), sulfur (SII) and oxygen (OIII). The OIII emission is quite weak and the brighter structures are built up by SII and Ha. While SII is not as present in the background as Ha the brighter locations of the two emission colors are more or less identical.

To show the spatial distribution of the light emitting gases three different color palettes were used. The image shows the total luminance (Ha+SII+OIII), an (Ha+SII)OO, an SHO palette and an HSO version. The stars are shown in their original colors.

Zwo ASI1600mmp and TS Photoline 130/910 mm with 0.7x reducer.

92 x 300s Ha with Baader 7nm Filter

100 x 300s SII with Baader 8nm Filter

100 x 300s OIII with Baader 8nm Filter

29 x 30s red

28 x 30 s green

30 x 30s blue

Astro PIxel Processor and PS CC 2020

Cloudy Nights
N.I.N.A. Users
Narrowband imaging

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Basic failed
Started	...
Astrometry.net job	3842234
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Abell 85 / CTB1

Abell 85 / CTB1

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Abell 85 / CTB1

Abell 85 / CTB1

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