NGC 6723 and Friends (NGCs 6726, 6727, 6729, IC 4812, etc.) (DavidLJ)

Celestial hemisphere: Southern · Constellation: Corona Australis (CrA) · Contains: NGC 6723 · NGC 6726 · The star εCrA

NGC 6723 and Friends (NGCs 6726, 6727, 6729, IC 4812, etc.), DavidLJ

Powered byPixInsight

NGC 6723 and Friends (NGCs 6726, 6727, 6729, IC 4812, etc.)

NGC 6723 in Sagittarius is the globular cluster shown in the lower left part of the image. It is spans 87 light years across at a distance of approx. 28,500 light years. The bright (blue) reflection nebulae just over the boundary in Corona Australis (the Southern Crown) are much closer to us at 420 light years. The brightest one with the two cores has two NGC numbers 6726 and 6727. To the upper left of that is IC 4812 close to the double star that is easily recognised because of its twin diffraction spikes. Slightly above NGC 6726/6727 is the small white/yellow triangular nebula NGC 6729 that surrounds variable star R Coronae Australis. Close by that is the hook shaped Herbig Haro Object which is being thrown off by a newly born star. The new star's rotation probably determines the shape of this object.

The reflection nebula are set against the backgound of the Milky Way but the myriad of stars there is obscured over large parts of the image by clouds of gas and dust. The denser parts hide almost all of the background stars while the thinner parts show up as brownish/grey clouds. At the distance of the dust clouds and nebulae the image spans 9 light years. This means that all of the “close by” objects in the image are packed into a region only twice the size of the distance from our Sun to its nearest star.

I'm finding this field difficult to process. But I think that the latest revision is an improvement.

Original
B
Final
D

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	729437
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

NGC 6723 and Friends (NGCs 6726, 6727, 6729, IC 4812, etc.)

Equipment

Acquisition details

Description

Comments

Revisions

Sky plot

Histogram

Image Index:

Contribution Index (beta):

NGC 6723 and Friends (NGCs 6726, 6727, 6729, IC 4812, etc.)

Equipment

Acquisition details

Description

Comments

Revisions

Sky plot

Histogram

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

Delete this revision?

Delete this revision?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information