Vela Supernova Remnant, Four Panel Mosaic, May 2023. (Glenn Baxter)

Vela Supernova Remnant, Four Panel Mosaic, May 2023.

This object has a reasonably interesting background story. The Vela supernova remnant is part of a much larger emission nebula, Gum 12 or The Gum Nebula, the largest ionized hydrogen nebula in the Galaxy, which spans 40 degrees and two constellations, Vela and Pupis in the Southern Hemisphere. It was catalogued by an Australian astronomer, Colin Gum, in the 1950's. The Vela SNR is a small part of this and the result of a supernova explosion 12k years ago. The exploding star has left behind what is known as the Vela pulsar. The study of this system provided direct observational evidence that supernova explosions produce rapidly-rotating neutron stars. This pulsar is located just below the blue ring (upper centre) but is not visible so don't bother hunting for it!

This image is a four panel mosaic taken over five nights in May 2023 with my new astro camera. The lens was my Canon zoom at 200 mm. The stars are dreadful and I considered not uploading but this is part of the journey. Am eager for it to come around again in the new year for another shot with a different lens.

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	8227037
PixInsight job	n/a
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