Coma berenices M100 M99 / Canon 100Da + Canon 400mm L f/5.6 / Star adventurer / Autoguiding (patrick cartou)

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: 6 Com · Coma Pinwheel · IC 3065 · IC 3077 · IC 3080 · IC 3093 · IC 3096 · IC 3142 · IC 3238 · IC 3244 · IC 3365 · IC 781 · IC 783 · IC 787 · M 100 · M 99 · NGC 4237 · NGC 4254 · NGC 4262 · NGC 4298 · NGC 4302 · NGC 4312 · NGC 4321 · NGC 4322 · NGC 4328 · NGC 4379 · NGC 4396 · NGC 4405 · The star 6Com · Virgo Cluster Pinwheel

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Coma berenices M100 M99 / Canon 100Da + Canon 400mm L f/5.6 / Star adventurer / Autoguiding

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Coma berenices M100 M99 / Canon 100Da + Canon 400mm L f/5.6 / Star adventurer / Autoguiding

A small pause in a cloudy period: however I could keep only 21 subs x 180" on 70...

Looking more acurately at the subs, I recognize autoguiding is not perfect, with consequence that the stars are elongated...

Canon lens 400 mm L f/5.6 full open.

Stacking with SIRIL 0.9.12 drizzlex2

Original
B
Final
C

C

Description: DXO Optics 11 treatment of levels, curves and colors enhancement

Uploaded: ...

Sky-Watcher Star Adventurer
Cloudy Nights
AAA : Astronomes et Astrographes Amateurs
Astrophotographes (France)

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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	Advanced success
Started	...
Astrometry.net job	3354004
PixInsight job	D5NU1TIXJ41LM07GCOMJ5R9RHIZ6OS5A
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	12h20m56s.79
RA (top/left)	12h19m58s.89
RA (top/right)	12h14m13s.87
RA (bottom/right)	12h21m53s.72
RA (bottom/left)	12h27m43s.28

Dec (center)	+15°11′54″.7
Dec (top/left)	+17°04′05″.4
Dec (top/right)	+14°14′28″.3
Dec (bottom/right)	+13°19′33″.7
Dec (bottom/left)	+16°08′33″.7

Image Index:

Contribution Index (beta):

Coma berenices M100 M99 / Canon 100Da + Canon 400mm L f/5.6 / Star adventurer / Autoguiding

Coma berenices M100 M99 / Canon 100Da + Canon 400mm L f/5.6 / Star adventurer / Autoguiding

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Image Index:

Contribution Index (beta):

Coma berenices M100 M99 / Canon 100Da + Canon 400mm L f/5.6 / Star adventurer / Autoguiding

Coma berenices M100 M99 / Canon 100Da + Canon 400mm L f/5.6 / Star adventurer / Autoguiding

Equipment

Acquisition details

Description

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C

Sky plot

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In these public groups

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