Andromeda Galaxy (M31, NGC 224) (Gerard Brull)

Andromeda Galaxy (M31, NGC 224)

The Andromeda Galaxy also known as Messier 31, M31, or NGC 224 and originally the Andromeda Nebula, is a barred spiral galaxy approximately 2.5 million light-years from Earth and the nearest large galaxy to the Milky Way.

The Milky Way and Andromeda galaxies are expected to collide 💥 in around 4-5 billion years merging to form a giant elliptical galaxy or a large lenticular galaxy.

The other small Galaxy in the bottom right is the M110 which was independently discovered by Caroline Herschel (1784). The suggestion to add the Galaxy to the messier list was done in 1967 making it the last member of the Messier list.

I'm super happy with my first result (after 3 failed attempts)

Constructive criticism is always welcome!! In terms of noise and bad artefacts I ran out of battery in the middle of the night so I didn't have time to do calibration frames 🤦‍♂️🤦‍♀️

Details:
👓 40 x 120 seconds ISO 100 f/5,6 200mm
⏳Total: 80min exposure
📍 Barcelona, Bortle 9
📷 Nikon D750 (unmodded)
🔭 Tamron 70-200mm G2 2.8
🪵Sky Watcher Adventure Pro i2
Edited with Siril and Darktable (both open-source software ♥️).

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	n/a
Started	n/a
Astrometry.net job	n/a
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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