C/2023 A3 (Tsuchinshan-ATLAS) comète (Corine Yahia (RIGEL33))

Celestial hemisphere: Southern · Constellation: Libra (Lib) · Contains: Solar system body or event

C/2023 A3 (Tsuchinshan-ATLAS) comète, Corine Yahia (RIGEL33)

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C/2023 A3 (Tsuchinshan-ATLAS) comète

Link: https://flic.kr/p/2pGVpGs

Powered byPixInsight

C/2023 A3 (Tsuchinshan-ATLAS) comète

Link: https://flic.kr/p/2pGVpGs

C/2023 A3 (Tsuchinshan-ATLAS) est une comète à longue période qui a été découverte en 2023, de façon indépendante, par l'Observatoire de la Montagne Pourpre (Tsuchinshan) situé en Chine, et l'Asteroid Terrestrial-impact Last Alert System (ATLAS) situé en Afrique du Sud.

Quand j’ai imagé cette comète, elle se situait dans la constellation de la Balance, en dessous des pieds de la constellation de la Vierge. Dans l’image alignée sur les étoiles et annotée, quatre galaxies sont visibles.

Si elle survie à son périhélie (passage au plus près du Soleil) fin septembre 2024, elle se rapprochera de la Terre, en octobre 2024, à environ 70 millions de km, ce qui pourrait la rendre parfaitement visible à l’œil nu. Elle pourrait être plus spectaculaire que Néowise en 2020 !

Mais pour l’instant, elle passe inaperçue, occultée par sa consœur 12P/Pons-Brooks, prénommée la comète du Diable. C/2023 A3 est encore bien faible et éloignée d’un peu plus de 2 UA, soit environ 300 millions de kilomètres. Cependant, elle affiche déjà une petite queue et semble vraiment prometteuse !

Photos prises le 7 mars 2024 à Allons (47) – Canon EOS 40D défiltré au foyer d'une lunette Skywatcher 100ED sur monture Orion Sirius EQ-G motorisée (sans autoguidage ni goto).
[color=var(--lighterGrey)]85 poses de 60 s – ISO 1600 – 25 DOF – Traitement Siril[/color]

Women Astrophotographers
AAA : Astronomes et Astrographes Amateurs
Astrophotographes (France)
Camera Lens Astrophotography
Solar System Imaging

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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
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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
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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	9603851
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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C/2023 A3 (Tsuchinshan-ATLAS) comète

C/2023 A3 (Tsuchinshan-ATLAS) comète

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C/2023 A3 (Tsuchinshan-ATLAS) comète

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