L'Œil du matou (Corine Yahia (RIGEL33))

Celestial hemisphere: Northern · Constellation: Draco (Dra) · Contains: NGC 6543

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L'Œil du matou

Link to TIFF/FITS: https://flic.kr/p/zeSmRF

Voici une image qui m'a un peu déçue… je pensais que j'aurais plus de détails sur cette nébuleuse de l'Œil de Chat… pas forcément au cœur mais au moins sur la corolle. Vous la trouverez au centre de l'image dans une teinte verdâtre. Il semblerait que mon setup a des limites finalement. J'ai pu additionner plus de deux heures de poses totales mais j'ai beau pousser les traitements, je n'arrive pas à la faire ressortir plus que ça, sans faire monter les défauts du fond du ciel. Il faut sûrement imager à la CCD pour capter correctement ce regard félin. Il faut toutefois souligner que j'ai pu saisir pas mal de galaxies… on peut les voir répartie dans l'image dont NGC 6552 en haut à droite de la nébuleuse.

Entre mon E.T. flou et cet Œil de Chat faiblard, on ne peut pas qualifier cette nuit du 19 août de productive en qualité d'image !

Photo prise le 19 août 2015 à Ambeyrac (12) - Canon 350D défiltré (avec correcteur de coma) au foyer d'un Newton 150/750 sur monture Orion Sirius EQ-G motorisé (sans autoguidage ni goto).

68 poses de 2 mn – 15 DOF – ISO 800 – IRIS et Toshop.

AAA : Astronomes et Astrographes Amateurs

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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
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	823740
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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