Abell 85 / CTB 1 Super Nova Remnant (Benjamin Law)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: The star 9 Cas

Abell 85 / CTB 1 Super Nova Remnant, Benjamin Law

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Abell 85 / CTB 1 Super Nova Remnant

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Abell 85 / CTB 1 Super Nova Remnant

My main target during NYAA Starfest 2022.

Abell 85 / CTB 1

This target is very faint and I wanted to take advantage of the dark sky during the NYAA Starfest 2022 so I took the challenge.

Abell 85 is a supernova remnant (SNR) in the constellation Cassiopeia and a source of optical, radio, and X-ray emissions. A recent study reports that a pulsar was born from the supernova that produced CTB 1 and ejected into the galaxy, travelling at a velocity exceeding 1000 km/s.

Camera: ASI294MM-P
Filters: Optolong Ha, Oiii
Scope: Skywatcher Evostar 80, 0.8X FF
Mount: AVX
Exposures: Ha - 79x300s; Oiii - 55x300s (Total ~11.2 hours)

Something went wrong initially during the 2nd night of the Starfest, I spent 2 hours problem solving and getting things sorted out.

Processing was a challenge, I am glad that the data was good and that helps processing slightly easier than I thought. Starnet++ plug-in was applied to the stacked image at linear state. Background and the original stacked picture were processed separately. Different layers of Nebulosity, background, stars, colors are blended using Photoshop.

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	Distinct awarded users	Total awarded images
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This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
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	Image of the day	Top pick	Top pick nominations	Total submitted
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Other
Unknown

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Status	Basic success
Started	...
Astrometry.net job	6257468
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Abell 85 / CTB 1 Super Nova Remnant

Abell 85 / CTB 1 Super Nova Remnant

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