Alfecca Meridiana Region (S. Hemisphere) 3x3 RGB Mosaic (Alex Woronow)

Alfecca Meridiana Region (S. Hemisphere) 3x3 RGB Mosaic

3x3 RGB Pannels of Alfecca Meridiana Region (S. Hemisphere)

OTA:Takahashi Epsilon 180 f/2.8
Camera: ZWO ASI2600MM, 2x2 binned at capture and 2x down-sampled for publication
Observatory: Telescope Live
Image Size 7x4 degrees
Image Color Type: RGB

Processing: PixInsight, Topaz Studio2, PanoramaStudio 3Pro, 3DLUT, custom scripts for star replacement

The star Alfecca Meridiana is also known as Alpha Coronae Australis. The Arabic name for this star is something like Bright Star Of the Broken Ring—referencing the asterism "Corona Australis" or Southern Crown. (U. Illinois).

This image was purchased pre-calibrated. It was a flawed data set with insufficient (sometimes zero) overlap between the mosaic elements. Several patches had as few 2 usable subframes in a particular color, and none had more than 4. Given those problematic issues, Panorama Studio did a surprisingly good job of hiding these inherent defects and gave me fruther experience at mosicing. BUT, this was a free data set for iTelescope subscribers…so how much complaining can one do, reasonably, that is.

The area certainly has much to offer in picture complexity and interest.
Alex Woronow

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 failed
Started	...
Astrometry.net job	8090279
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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