Comète C/2018 R3 (étoiles) (Corine Yahia (RIGEL33))

Celestial hemisphere: Northern · Constellation: Camelopardalis (Cam) · Contains: Solar system body or event

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Comète C/2018 R3 (étoiles)

Link to TIFF/FITS: https://flic.kr/p/2gdjx6X

Powered byPixInsight

Comète C/2018 R3 (étoiles)

Link to TIFF/FITS: https://flic.kr/p/2gdjx6X

Une comète citron à Tauxigny (C/2018 R3)

Lors des Nuits astronomiques de Touraine 2019, j’ai appris par Nicolas B. (merci à lui) qu’une comète était accessible dans la constellation de la Girafe. Je décidais de m’y attaquer dans la nuit du samedi au dimanche. Il s’agissait de la comète C/2018 R3 Lemmon.

A une distance de la Terre d’environ 2 UA au 2 juin et proche de son périhélie (à 1,3 UA environ), la comète est restée assez basse sur l’horizon nord tout au long de l’acquisition, passant de 16° à 14° puis remontant à 15°. Du coup, les étoiles restent un peu rouges, ainsi que le fond du ciel.

Aujourd’hui, elle s’éloigne de nous et comme on ne la reverra pas avant une petite soixantaine d’années, je suis assez contente d’avoir pu la capter ;)

Ce samedi soir, le ciel n’était pas trop engageant en début de soirée, mais après avoir rapidement trouvé l’astre chevelu et l’avoir à peu près cadré comme je le souhaitais, je lançais des poses de 2 mn, en me disant que je ferais le tri après. Et du tri, il y en a eu. J’ai perdu une vingtaine de poses sur les 113 prises gâchées par les voiles nuageux importants en début de prise de vue, le jour qui se levait en fin d’acquisition, et entre les deux un passage d’avion et quelques dérives de la monture.

Photos prises le 2 juin 2019 à Tauxigny (37) – Canon 350D (défiltré partiel) au foyer d’une lunette 100/900 ED Skywatcher sur monture Orion Sirius EQ-G (sans goto, ni autoguidage).

93 poses de 2 mn, ISO 800, 21 DOF, Iris, Camera RAW, Toshop, WirtualDub

AAA : Astronomes et Astrographes Amateurs

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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.

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Status	Basic success
Started	...
Astrometry.net job	3391970
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Comète C/2018 R3 (étoiles)

Comète C/2018 R3 (étoiles)

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Comète C/2018 R3 (étoiles)

Comète C/2018 R3 (étoiles)

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