IC63 The ghost of Cassiopeia - Le fantôme de Cassiopée HOO RGB (cedric de DECKER)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 27 Cas) · IC 59 · IC 63 · The star Navi (γ Cas

IC63 The ghost of Cassiopeia - Le fantôme de Cassiopée HOO RGB, cedric de DECKER

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IC63 The ghost of Cassiopeia - Le fantôme de Cassiopée HOO RGB

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IC63 The ghost of Cassiopeia - Le fantôme de Cassiopée HOO RGB

Le fantôme de Cassiopée image assez ténu en HA, mais encore plus en OIII ou le signal même au bout de 300 sec en pose unitaire est pratiquement absent.
Le traitement est assez compliqué avec des halos qui se forment est ce dû aux grosses étoiles ?
Je voulais imager cette cible depuis un moment et ma petite, avancée dans la connaissance du traitement, m'a permis de sortir cette image.

The ghost of Cassiopeia is a fairly faint image in HA, but even more so in OIII where the signal even after 300 sec in single exposure is practically absent.
The treatment is quite complicated with halos forming, is this due to the big stars?
I wanted to image this target for a while and my little knowledge of the treatment allowed me to release this image.

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
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Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

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.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Basic success
Started	...
Astrometry.net job	9449776
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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IC63 The ghost of Cassiopeia - Le fantôme de Cassiopée HOO RGB

IC63 The ghost of Cassiopeia - Le fantôme de Cassiopée HOO RGB

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IC63 The ghost of Cassiopeia - Le fantôme de Cassiopée HOO RGB

IC63 The ghost of Cassiopeia - Le fantôme de Cassiopée HOO RGB

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