Messier 31 The Andromeda Galaxy (Kenneth Adler)

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

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Messier 31 The Andromeda Galaxy

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Messier 31 The Andromeda Galaxy

The Andromeda Galaxy and its companion galaxies M32 (the larger of the two smaller) and M110 can be found in the constellation for which it is named, Andromeda. This large galaxy is approximately 2,500,000 light years away. In terms of miles it would be 1.5 with 19 zeros following it which may not be of much help. This galaxy contains about a trillion stars. The national debt would amount to around $30 dollars for each star contained in the galaxy. It is somewhere around 250,000 light years across. I had always wanted to photograph this galaxy as photographs by other amateurs have always inspired me. I am located in a Bortle 9 area, right in the heart of the city. I captured my data using a Meade Series 6000 refractor of 80/480 millimeters, and an Atik Horizon II mono with Astrodon filters. Amusingly, I autoguided using a 14" Meade LX200. This photograph would be my first of Messier 31, and also my first Ha-LRGB. It represents approximately 4 hours of Hydrogen Alpha and equal parts of 8 hours of 60 second LRGB exposures. I rejected an unknown number of exposures marred by helicopters, airplanes, meteors, satellites, ufo's, and fireworks, etc. Due to nearby trees and a two story dwelling, I could only obtain a maximum of two hour sessions, some cut short by clouds. So, much of the credit should be heaped on my astronomy widow, Elizabeth, who enjoyed my absence on more than ten sessions. Some sessions ended between 1 and 3 a.m. after shooting calibration frames. Of Course my dog, Mellie, helped enormously by keeping me both company and awake.

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	5201639
PixInsight job	LIGEAGXU5PF6Q4DBGQOTF6CIWHESLG5A
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h42m43s.52
RA (top/left)	00h37m59s.99
RA (top/right)	00h48m14s.14
RA (bottom/right)	00h47m34s.91
RA (bottom/left)	00h37m06s.42

Dec (center)	+41°14′46″.1
Dec (top/left)	+40°24′07″.6
Dec (top/right)	+40°35′25″.4
Dec (bottom/right)	+42°04′42″.3
Dec (bottom/left)	+41°53′04″.4

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Messier 31 The Andromeda Galaxy

Messier 31 The Andromeda Galaxy

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Messier 31 The Andromeda Galaxy

Messier 31 The Andromeda Galaxy

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