Globular cluster Messier 15 (Indy Backyard Astro)

Celestial hemisphere: Northern · Constellation: Pegasus (Peg) · Contains: HD204571 · HD204712 · M 15 · NGC 7078 · PK065-27.1

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Globular cluster Messier 15

Link: https://tomsbackyardastro.com/messier-15-globular-cluster

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Globular cluster Messier 15

Link: https://tomsbackyardastro.com/messier-15-globular-cluster

Messier 15 (M15) is a dense and ancient globular star cluster located in the constellation Pegasus. It is about 35,000 light-years away from Earth. M15 is one of the oldest known star clusters, estimated to be around 12 billion years old. Its tightly packed core contains hundreds of thousands of stars, making it one of the densest globular clusters.The cluster is easily visible through small telescopes and appears as a fuzzy ball of light. M15's central region exhibits a distinctive concentration of stars, forming a bright core. It has been extensively studied due to its advanced age, providing insights into stellar evolution and the early stages of the universe. M15 also hosts a high number of variable stars, including RR Lyrae variables, which have aided in distance measurements and understanding the cluster's properties. Its location and unique characteristics make Messier 15 an intriguing target for astronomers studying the dynamics and structure of globular clusters, as well as the broader field of stellar astronomy.

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Messier Catalog

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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	8325503
PixInsight job	T43I1O1FFGXG4ECNGC26UHYVNNNMLYV3
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h29m52s.110
RA (top/left)	21h28m45s.250
RA (top/right)	21h28m31s.485
RA (bottom/right)	21h30m58s.569
RA (bottom/left)	21h31m12s.981

Dec (center)	+12°09′06″.90
Dec (top/left)	+12°36′56″.92
Dec (top/right)	+11°43′34″.37
Dec (bottom/right)	+11°41′15″.12
Dec (bottom/left)	+12°34′35″.93

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Globular cluster Messier 15

Globular cluster Messier 15

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Globular cluster Messier 15

Globular cluster Messier 15

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