Supernova Remnant CTB1 widefield (Pranay Kanwar)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 10 Cas · 6 Cas · 9 Cas · HD1009 · HD1010 · HD1057 · HD1069 · HD108 · HD1142 · HD1166 · HD1201 · HD1239 · HD1287 · HD134 · HD1383 · HD1400 · HD1456 · HD1457 · HD1544 · HD1545 · HD1613 · HD163 · HD1697 · HD222217 · HD222275 · HD222407 · HD222647 · HD222670 · HD222682 · HD223057 · And 79 more.

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Supernova Remnant CTB1 widefield

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Supernova Remnant CTB1 widefield

A faint bubble shape supernova remnant (a.k.a SNR G116.9+02) in Cassiopeia ~7500-10000 years old and ~9500 ly away. A mixed-morphology supernova remnant with its shell visible in both optical and radio. The categorization CTB1 comes from the radio survey by Wilson and Bolton in 1960, Caltech observatory list B catalog. Originally miscataloged as a planetary nebula Abell 85 and HII region LBN 576. The supernova that created this also kicked its core hurling it away from it, the pulsar PSR J0002+6216, spinning 8.7 times a second and traveling over 1000 km/s. The Sharpless nebulas, SH2-170 (circular object on the left), SH2-165, SH2-166 (top), SH2-168, SH2-169 (top left) can also be seen in the image.

HSO 15h (3x30x600s) false color image from narrowband data. Taken from SPA-3 telescope, a Takahashi FSQ-106EDX4 with Paramount MX+ mount, FLI PL16083 camera and Astrodon LRGB 2GEN, Ha (3nm), SII (3nm), OIII (3nm) filters. Situated in IC Astronomy Observatory, Spain. Part of telescope.live telescope network. Taken on multiple dates Jun-Aug 2022.

Processed in PixInsight. Color mapping was done using Alex Woronow's Narrowband Assistant script.

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	Advanced success
Started	...
Astrometry.net job	6380652
PixInsight job	SKXUEPH38UATTAPCRYY2GT5IAIL6BJ4C
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h59m07s.88
RA (top/left)	23h31m54s.83
RA (top/right)	23h42m34s.71
RA (bottom/right)	00h22m34s.42
RA (bottom/left)	00h19m16s.32

Dec (center)	+62°21′04″.1
Dec (top/left)	+64°25′21″.2
Dec (top/right)	+59°16′01″.1
Dec (bottom/right)	+59°59′47″.0
Dec (bottom/left)	+65°16′45″.7

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Supernova Remnant CTB1 widefield

Supernova Remnant CTB1 widefield

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Supernova Remnant CTB1 widefield

Supernova Remnant CTB1 widefield

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