M 22 - A Beautiful Globular Cluster in Sagittarius (Fernando)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: M 22 · NGC 6656

M 22 - A Beautiful Globular Cluster in Sagittarius, Fernando

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M 22 - A Beautiful Globular Cluster in Sagittarius

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M 22 - A Beautiful Globular Cluster in Sagittarius

My intention was to image this globular cluster catching the PN GJJGC 1 located close to the core. A strange wind started blowing and I switched the camera to an OSC and shortened the subs to only 5 minutes. When I collected 20 frames the sky got cloudy and in a couple of minutes the rain started, I was lucky to get this image!!

M 22 is distant from solar system by 10 thousands LY, has an apparent size of 17 arc minutes and age of 12-14 billion years. Its mass is about 1/2 million Suns !!

An interesting effect of transient brightening has been obseverved in stars on the other side of the bulge of our galaxy belonging to the same star field of M 22, this is, in the our line of sight passing by the galactic bulge and M 22. The explanation for this is still to come.

As mentioned, the image was taken with a osc CCD, afocal in a RC-8. 20 frames of 300sec has been collected.

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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.

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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.
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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	327234
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M 22 - A Beautiful Globular Cluster in Sagittarius

M 22 - A Beautiful Globular Cluster in Sagittarius

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M 22 - A Beautiful Globular Cluster in Sagittarius

M 22 - A Beautiful Globular Cluster in Sagittarius

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