M19 (NGC 6273) Globular Cluster in Ophiuchus in RGB (Updated) (Ian Parr)

Celestial hemisphere: Southern · Constellation: Ophiuchus (Oph) · Contains: M 19 · NGC 6273

M19 (NGC 6273) Globular Cluster in Ophiuchus in RGB (Updated), Ian Parr

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M19 (NGC 6273) Globular Cluster in Ophiuchus in RGB (Updated)

Powered byPixInsight

M19 (NGC 6273) Globular Cluster in Ophiuchus in RGB (Updated)

Messier 19 (also designated NGC 6273) is a globular cluster in the constellation Ophiuchus and about 28,700 Light Years away.

It is one of the most oblate of the known globular clusters but the flattening appears to the result of extinction caused by intervening gas and dust.

This cluster contains an estimated 1,100,000 times the mass of the Sun and it is around 11.9 billion years old.

I revisited the same data from last year but with much better PixInsight tools and a tight grip on BluxXterminator.

I think the best thing with globulars in BlurXterminator is to turn off non-stellar sharpedning altogther as that algorithmn seems to like filling in gaps too much.

Astro Imaging seems to be one long endless learning curve of re-do's these days but at least it helps to fill in the time between the weather wrecking balls.

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	7532578
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

M19 (NGC 6273) Globular Cluster in Ophiuchus in RGB (Updated)

M19 (NGC 6273) Globular Cluster in Ophiuchus in RGB (Updated)

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Image Index:

Contribution Index (beta):

M19 (NGC 6273) Globular Cluster in Ophiuchus in RGB (Updated)

M19 (NGC 6273) Globular Cluster in Ophiuchus in RGB (Updated)

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

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