M22 in 2022 (MohMan)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: M 22 · NGC 6656 · The star 24 Sgr · The star 25 Sgr

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M22 in 2022

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M22 in 2022

M22 was one of the first targets I ever imaged back after I bought a Canon EOS 6D in 2018. Now almost everything about how I image has improved so I've been coming back to some of those original targets to see how my skills have improved.

Only 51x30" images in the integration with 50 Flats, corrected by a master bias frame and no darks. I won't say darks are useless but after experimenting I found that a master dark is virtually indistinguishable from the master bias until you start getting upwards of 5 minute exposures. For 30 sec - use that time to capture more light frames.

Globulars are surprisingly tough to do well - they are easy to over expose in the core and the stars are so tightly packed that any type of sharpening or NR causes some pretty obvious processing artifacts.

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	5888095
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M22 in 2022

M22 in 2022

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Image Index:

Contribution Index (beta):

M22 in 2022

M22 in 2022

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

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