Abell85 - CBT1 (Matthieu TEQUI)

Abell85 - CBT1

version HOO
Ha:120x180sec
OIII:120x180sec

Je reste dans les rémanents de supernova pour vous présenter abell 85 appelé aussi CBT1. De par sa forme, elle a été prise pour une nébuleuse planétaire lors de sa découverte par Georges Abell mais corrige par la suite.
Située dans la constellation de Cassiopée, on l’appelle aussi nébuleuse Medulla.
Elle est à prédominance Ha (rouge) avec un filament de OIII (bleu).
Concernant l’acquisition, elle fait partie des challenges du ciel profond car elle est très ténue dans une zone bourrée d’étoiles.
Le gros travail du traitement a donc été de réduire assez drastiquement les étoiles pour la mettre davantage en évidence.
Ensuite, l’œil avisé des astropotes permettent de corriger certains défauts de colorimétrie pour lui donner un aspect plus adapté au mixage HOO!

Original
Final
C

C

Description: Starless HOO

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Schmidt-Cassegrain Telescope (SCT) Imagers
Astrophotographes (France)
Abell Planetary Nebula
HyperStar Lens Astrophotography

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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 failed
Started	...
Astrometry.net job	5003989
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Abell85 - CBT1

Abell85 - CBT1

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Abell85 - CBT1

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