VDB 152 (mario_hebert)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep)

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VDB 152

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VDB 152

Nébuleuse par réflexion VDB 152

Le ciel lui-même recèle de coins paradisiaques. En voici un exemple.

J'ai eu bien du plaisir à capturer et traiter celui-ci, qui devient par la même occasion la "première lumière" de mon miroir primaire fraîchement réaluminisé.

Il s'agit d'une nébuleuse par réflexion du catalogue Van den Bergh, nommée VDB 152 et on la retrouve dans la constellation de Céphée.

La zone bleue est en fait de la lumière réfléchie par la brillante étoile (magnitude 9.2) de couleur blanc-bleu qui se trouve en face d'elle.

J'ai préféré ici garder l'histogramme de l'image relativement "relax" pour conserver la douceur qui émane de cette nébuleuse. Resserrer l'histogramme aurait fait apparaître des détails plus subtils, mais au détriment d'une "agressivité" lumineuse qui selon moi n'aurait pas sa place ici.

Les couleurs ont été acquises l'année dernière, et la luminance date de la fin de semaine dernière, sur deux nuits consécutives. Eh oui... je fixais les feux du ciel sous les cris du huard alors que d'autres fixaient les feux de la fête nationale.. ;-)

Les conditions du ciel de vendredi n'étaient pas fameuses, voiles nuageux un peu trop fréquents, venteux, alors que celles de samedi était nettement meilleures, mais les deux nuits ont été écourtées par le lever de la lune.

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	2762030
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Contribution Index (beta):

VDB 152

VDB 152

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Image Index:

Contribution Index (beta):

VDB 152

VDB 152

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

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