California, part of, LRGB and processing (Rodolphe Goldsztejn)

Celestial hemisphere: Northern · Constellation: Perseus (Per) · Contains: 46 ksi Per · California Nebula · IC 2005 · Menkib · NGC 1499 · Sh2-220 · The star ξPer

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California, part of, LRGB and processing

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California, part of, LRGB and processing

Images capturées il y a un peu plus d'un an, sur une seule nuit.

1h50 de capture sur chaque canal L, R et G, et 1h40 sur le canal B.

Mon premier traitement effectué avec PixInsight l'an passé ne parvenait à montrer que du rouge sur la nébuleuse, noyée dans le fond du ciel, sans détails.

Je me suis dit qu'on pouvait sûrement faire mieux:

* Empilement avec PixInsight

* Traitement avec Startools

* Ajustement final netteté dans Photoshop

* Puis réduction des étoiles de nouveau dans Startools

Le halo bleu sur Menkib est un peu disgracieux - pas encore trouvé un moyen élégant de le réduire... Peut-être que le filtre L est responsable de ce halo?

Commentaires welcome comme toujours!

Original
B
Final
C

B

Title: NGC 1499 - LRGB - reprocessed with latest workflow

Uploaded: ...

C

Title: Revisited (Jan 2023 workflow)

Uploaded: ...

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

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
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

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
Own remote observatory
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	Advanced success
Started	...
Astrometry.net job	4219564
PixInsight job	BUD49WWK61E86S96YMEBGYI2UXR3CR2C
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	04h01m10s.98
RA (top/left)	03h55m52s.66
RA (top/right)	04h06m45s.65
RA (bottom/right)	04h06m36s.92
RA (bottom/left)	03h55m29s.25

Dec (center)	+36°25′09″.4
Dec (top/left)	+35°31′52″.6
Dec (top/right)	+35°36′02″.0
Dec (bottom/right)	+37°17′34″.6
Dec (bottom/left)	+37°13′18″.4

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California, part of, LRGB and processing

California, part of, LRGB and processing

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Image Index:

Contribution Index (beta):

California, part of, LRGB and processing

California, part of, LRGB and processing

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Description

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C

Sky plot

Histogram

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