Messier 25 _ Open Cluster in Sagittarius (Rodney Watters)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: IC 4725 · M 25

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Messier 25 _ Open Cluster in Sagittarius

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Messier 25 _ Open Cluster in Sagittarius

Messier 25 is a bright open cluster in the constellation of Sagittarius (The Archer) and is located approximately 2,000 light years from Earth. The cluster is about 90 million years old which makes it quite young when compared to our Sun which is a very mature 4.6 billion years old. However, the cluster covers an area of sky approximately 13 light years across making it quite disperse. There are only 601 star catalogued as part of the cluster.

The cluster is quite attractive to view and if you stand back from the image and look closely there is evidence of dark dust lanes running through the field and the core of the cluster. The dat a for this image were captured as a 'grab and go' data set whilst waiting for other objects to get high enough to start imaging. Its nice to be able to make the best use of every minute of dark sky time that we can.

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	Basic success
Started	...
Astrometry.net job	5051610
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Messier 25 _ Open Cluster in Sagittarius

Messier 25 _ Open Cluster in Sagittarius

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Image Index:

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Messier 25 _ Open Cluster in Sagittarius

Messier 25 _ Open Cluster in Sagittarius

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