Ic434-la nébuleuse du cheval et de la flamme (Matthieu TEQUI)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 46 eps Ori · 48 sig Ori · 50 zet Ori · Alnilam · Alnitak · B33 · Flame Nebula · Horsehead nebula · IC 431 · IC 432 · IC 434 · IC 435 · LBN 944 · LBN 946 · LBN 950 · LBN 953 · LBN 954 · LBN 958 · LBN 962 · LBN 965 · LDN 1635 · LDN 1636 · NGC 2023 · NGC 2024 · Orion B · Part of the constellation Orion (Ori) · Sh2-277 · The star Alnilam (εOri) · The star Alnitak (ζOri) · The star σOri · And 1 more.

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Ic434-la nébuleuse du cheval et de la flamme

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Ic434-la nébuleuse du cheval et de la flamme

Version HaRVB

Ha avec ZWO ASI 294MM: 80x180sec

RVB avec ZWO ASI 2600MC: 80x180sec

Ha avec Hyperstar sur C925 et Zwo asi 1600MMpro

(Acquisition de l’année dernière): 80x120sec

Voici une version HaRVB faite à l’askar FRA400 dont les détails ont été accentués grâce à l’hyperstar sur C925.

La couleur a été faite avec l’askar également.

Le mixage entre l’hyperstar et le C925 a été effectué sous pixinsight. Au préalable, un drizzle a été effectué en prétraitement pour rapprocher les 2 échantillonnages.

Les acquisitions ont été faite avec l’asiair pro. Une première! Plutôt très satisfait de ce boîtier même si la courbe d’autofocus est encore perfectible pour des rapports f/d bas (en dessous de 4). En tout cas, cela me permet d’avoir un setup sans aucun câble qui pend! J’ai bien dit aucun! Car l’alimentation de l’asiair s’effectue par le biais de la platine DEC de ma monture ou il y a un hub USB ET 2 prises alimentation.

Concernant la cible, elle fait partie des « classiques » de l’hiver mais comme tous les classiques, elle n’est pas forcément évidente pour plusieurs raisons;

La première, c’est de trouver une version qui ressortent par rapport aux multitudes autres versions tout en restant équilibré au niveau des couleurs.

La 2eme, c'est la gestion d’Alnitak et de son énorme halo vu sa faible magnitude.

Bcp de plaisir à traiter cette image même si j’y ai passé quelques heures (pour ne pas dire jour😅).

Final
Original
B

B

Description: Version 2 avec léger décalage de la courbe bleue au niveau de l’histo.

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	4151414
PixInsight job	VVQF4IHU5OZ9TXX0ZZCO07D886A54V0X
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h41m23s.27
RA (top/left)	05h35m41s.64
RA (top/right)	05h35m43s.56
RA (bottom/right)	05h47m05s.52
RA (bottom/left)	05h47m02s.90

Dec (center)	-02°29′11″.8
Dec (top/left)	-01°09′42″.6
Dec (top/right)	-03°49′21″.0
Dec (bottom/right)	-03°48′34″.9
Dec (bottom/left)	-01°08′58″.2

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Ic434-la nébuleuse du cheval et de la flamme

Ic434-la nébuleuse du cheval et de la flamme

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Image Index:

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Ic434-la nébuleuse du cheval et de la flamme

Ic434-la nébuleuse du cheval et de la flamme

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

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