NGC 1398 A Barred Double Ring Spiral Galaxy in Fornax in RGB (Ian Parr)

Celestial hemisphere: Southern · Constellation: Fornax (For) · Contains: NGC 1398 · NGC 1412

NGC 1398 A Barred Double Ring Spiral Galaxy in Fornax in RGB, Ian Parr

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NGC 1398 A Barred Double Ring Spiral Galaxy in Fornax in RGB

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NGC 1398 A Barred Double Ring Spiral Galaxy in Fornax in RGB

NGC 1398 is a spiral galaxy in Fornax with a double ring structure and very strong bar in it's core. It is located 65 million light years away. The galaxy contains over 100 billion stars and has a diameter of 135,000 light years, and has an apparent magnitude of 10.63 and size of 7.1 x 5.4 arc minutes.

2022 data ee-processed with the newest Pixinsight update and Russel Croman's latest BX AI library and the new AI update to Graxpert. Graxpert is very very good, but the best results still need careful management of the sample points. BlurXterminator has improved immensley, particulary for dense star fields, but, after initial correction to the channels, it is still a loaded weapon best carefully applied to the linear combined data so some changes to the workflow are needed.

Weather is crazy again ! 40 degrees one day, 20 the next and now rain up until Xmas but much better than bush fires.
If conditions permit I will give this another run around trhe next new moon as it is remarkable galaxy and more quality data never hurts.

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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.

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	8937050
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 1398 A Barred Double Ring Spiral Galaxy in Fornax in RGB

NGC 1398 A Barred Double Ring Spiral Galaxy in Fornax in RGB

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Contribution Index (beta):

NGC 1398 A Barred Double Ring Spiral Galaxy in Fornax in RGB

NGC 1398 A Barred Double Ring Spiral Galaxy in Fornax in RGB

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