Vela Supernova Remnant (Bruce Rohrlach)

Celestial hemisphere: Southern · Constellation: Vela (Vel)

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Vela Supernova Remnant

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Vela Supernova Remnant

A tiny segment of the vast Vela supernova remnant imaged in HOO (Hydrogen alpha mapped to red, Oxygen III mapped to green and blue). I am beginning to realise the processing challenges that come with imaging ultra faint objects like this shock wave filament from the ~11,000 year old Vela supernova, captured from home in Melbourne last night. When you remove light pollution gradients in your image stack, you likely inadvertently remove some target signal also. The real solution is to use even narrower narrow-band filters to block the last vestiges of light pollution, image from darker skies (not the fringe of a major city) and allow lots of time for signal acquisition/processing.

To build a larger picture (mosaic) of the enormous expanding gas bubbles of this supernova remnant - which spans the equivalent of 16 full moon diameters in the constellation Vela - patience and perseverance is going to be key. Luckily though, each filament of the ejected gas shells are in themselves things of great beauty. Imaging the individual parts are as rewarding as the entire nova, which would take about 50 image panels at the scopes native 1000mm focal length.

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	9262429
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Vela Supernova Remnant

Vela Supernova Remnant

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Vela Supernova Remnant

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