M 31 (Steph65) - AstroBin

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: Andromeda Galaxy · HD3431 · HD4143 · HD4174 · HD4322 · HD4669 · M 110 · M 31 · M 32 · NGC 205 · NGC 206 · NGC 221 · NGC 224

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M 31

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M 31

The Images were taken from my backyard in Montreal (bortle 9). I have combined images taken in 2019 with images taken in October and November 2022 for a total of 117.2 h of exposure time. This time around, I decided to push the limits on exposure time to see what kind of results I could get. Imaging a galaxy from a heavy light pollution area is not an easy task and for this image it wasn't easy in deed. There is a satisfying amount of detail but the colours were very difficult to manage, even though I took 63h of RGB.

Technical details:Exposure timesL: 926 x 2 minHa: 278 x 5 minR: 423 x 2 minG: 392 x 2 minB: 480 x 2 minCanon T3i : 600 x 2 min (taken in 2019) Total exposure: 117.2 h EquipmentTelescope: WO Star 71Mount: Paramount MyTCameras: ASI 1600MM and Canon T3iFilters: Optolong Ha, L,R,G,B (for the ASI 1600) and IDAS LPS (for the Canon T3i)

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	Advanced success
Started	...
Astrometry.net job	8441350
PixInsight job	KP28QZFE0ODWM4AZSIEV8QS4PQEUTD19
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h42m45s.77
RA (top/left)	00h49m39s.20
RA (top/right)	00h36m53s.73
RA (bottom/right)	00h35m41s.49
RA (bottom/left)	00h48m49s.58

Dec (center)	+41°17′42″.9
Dec (top/left)	+40°25′54″.3
Dec (top/right)	+40°11′46″.0
Dec (bottom/right)	+42°07′53″.8
Dec (bottom/left)	+42°22′28″.5

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M 31

M 31

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Image Index:

Contribution Index (beta):

M 31

M 31

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Description

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