Autour d'Antarès et Rho Ophiucus (Doublegui)

Celestial hemisphere: Southern · Constellation: Ophiuchus (Oph) · Contains: IC 4603 · IC 4604 · IC 4605 · M 4 · M 80 · NGC 6093 · NGC 6121 · NGC 6144 · The star 22Sco · The star Al Niyat (σSco) · The star Antares (αSco) · The star οSco · The star ρOph · The star ωOph · rho Oph nebula

Autour d'Antarès et Rho Ophiucus, Doublegui

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Autour d'Antarès et Rho Ophiucus

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Autour d'Antarès et Rho Ophiucus

Premier essai sur cette belle région nébuleuse du ciel.

Bon, ça ne vole malheureusement pas très haut sur l'horizon Sud cette affaire-là, et la fenêtre de tir entre les arbres du jardin n'est pas bien grande :-) !

Empilage de photos prises en tout sur deux sessions nocturnes différentes (c'est la première fois que je tentais un tel empilage avec DSS : ça se fait bien en créant des groupes afin de bien affecter les darks, flats et offsets aux deux sessions d'images brutes faites avec des réglages différents).

Pas trop mécontent du résultat, mais il me faut encore beaucoup exposer pour réduire ce vilain bruit encore trop présent à mon goût.

Cliché pris avec un APN Canon 6D non défiltré (à 1600 et à 3200 ISO) avec le téléobjectif Tamron réglé à 300 mm environ et ouvert à f/6.3 pour l'occasion ici.

Pas de guidage.

Empilement avec DSS, puis traitement avec Startools (et son outil BIN pour augmenter le rapport signal/bruit natif).

Image très légèrement recadrée.

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	Basic success
Started	...
Astrometry.net job	2781301
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Autour d'Antarès et Rho Ophiucus

Autour d'Antarès et Rho Ophiucus

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Autour d'Antarès et Rho Ophiucus

Autour d'Antarès et Rho Ophiucus

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