NGC 6541 The Cacciatore Globular Cluster in Corona Australis (Ian Parr)

Celestial hemisphere: Southern · Constellation: Corona Australis (CrA) · Contains: NGC 6541

NGC 6541 The Cacciatore Globular Cluster in Corona Australis, Ian Parr

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NGC 6541 The Cacciatore Globular Cluster in Corona Australis

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NGC 6541 The Cacciatore Globular Cluster in Corona Australis

NGC 6541, also known as Caldwell 78, is a globular cluster in the southern constellation of Corona Australis that is estimated to be around 14 billion years old.

These objects are not only a treat at the eyepiece but their amazing age and ubiquity is food for thought on cosmic evolution. The JWST images further suggest we might not know as much as we think we do and these objects may be key players in furthering our understanding.

With the right conditions RGB is quite a blast and perfectly suited to the amazing new tools available in Pixinsight; in particular Generalised Hyperbolic Stretch which supersedes a lot of other tools and processes on a decent Linear fitted RGB image so really not so much to do. That said a big shout out to Bill Blanshan's Pixelmath Star Reduction Methods. Not only super easy to control but very quick once I have created the Starless image in StarXTerminator.

And with this I have exhausted all the decent size winter globular cluster available to me and time to move on, weather permitting, to galaxy hunting in RGB.

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	6183236
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 6541 The Cacciatore Globular Cluster in Corona Australis

NGC 6541 The Cacciatore Globular Cluster in Corona Australis

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Image Index:

Contribution Index (beta):

NGC 6541 The Cacciatore Globular Cluster in Corona Australis

NGC 6541 The Cacciatore Globular Cluster in Corona Australis

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