Comète 2021 A1 Léonard (comète + étoiles) (Corine Yahia (RIGEL33))

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: Solar system body or event

Comète 2021 A1 Léonard (comète + étoiles), Corine Yahia (RIGEL33)

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Comète 2021 A1 Léonard (comète + étoiles)

Link: https://www.youtube.com/watch?v=SBNBT5d4B2I

Link to TIFF/FITS: https://flic.kr/p/2mP4KVw

Powered byPixInsight

Comète 2021 A1 Léonard (comète + étoiles)

Link: https://www.youtube.com/watch?v=SBNBT5d4B2I

Link to TIFF/FITS: https://flic.kr/p/2mP4KVw

Courte fenêtre pour la première de l’année ! La comète C/2021 A1 (Léonard) est la première comète découverte en 2021. Elle provient sûrement du nuage de Oort. Au vu de son orbite barycentrique, si elle survit à son périhélie (passage au plus près de Soleil) qui aura lieu début janvier 2022, elle quittera probablement le système solaire.Il est donc important d’en profiter aujourd’hui, d’autant qu’à son périgée (passage au plus près de la Terre) qui arrivera le 12 décembre, elle deviendra visible à l’œil nu (magnitude estimée à 4 environ). Ça devrait bien le faire avec une bonne paire de jumelles. La comète s’affichera aux côtés de l’alignement des planètes que nous offrira le ciel en cette seconde partie du mois de décembre, du 19 au 25.Photos prises à Ayguemorte-les-Graves (33) – Canon 40D défiltré partiel (+ filtre clip EOS L-enhance) au foyer d’une lunette 100/900 Skywatcher sur monture Orion Sirius EQ-G (sans goto ni autoguidage).Photos : 20 poses d’1 minute –ISO 3200 – 23 DOF – Iris, Toshop, Virtualdub et DSS.

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

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	Distinct awarded users	Total awarded images
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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
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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.

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Astrometry.net job	5293852
PixInsight job	n/a
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Comète 2021 A1 Léonard (comète + étoiles)

Comète 2021 A1 Léonard (comète + étoiles)

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Comète 2021 A1 Léonard (comète + étoiles)

Comète 2021 A1 Léonard (comète + étoiles)

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