The Pinwheel Galaxy and Supernova SN 2023ixf (jrtb)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: M 101 · NGC 5447 · NGC 5449 · NGC 5450 · NGC 5451 · NGC 5453 · NGC 5455 · NGC 5457 · NGC 5461 · NGC 5462 · NGC 5471 · Pinwheel galaxy

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The Pinwheel Galaxy and Supernova SN 2023ixf

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The Pinwheel Galaxy and Supernova SN 2023ixf

Messier 101, also known as the Pinwheel Galaxy, is a face-on spiral galaxy located in the constellation Ursa Major. It was discovered by Pierre Méchain on March 27, 1781 and subsequently logged by Charles Messier in his catalogue of nebulous objects.Located approximately 21 million light-years from Earth, M101 is noted for its high population of H II regions, many of which are very large and bright. H II regions usually contain hot, young stars and are areas where star formation occurs. This galaxy is about 70% larger than our own Milky Way, with a diameter of around 170,000 light-years.

Supernova 2023ixf was discovered on May 19th, 2023 by Amateur astronomer Koichi Itagaki. It is is a type II (core collapse) and has been as bright as magnitude 11. You can see it in this image!

73 x 300 second exposures for just over 6 hours total exposure.

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	8048730
PixInsight job	BTUE5S3989CY666KQH1YTAJKS6O9QOO3
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	14h03m13s.723
RA (top/left)	14h01m31s.491
RA (top/right)	14h01m47s.104
RA (bottom/right)	14h04m54s.904
RA (bottom/left)	14h04m41s.374

Dec (center)	+54°20′53″.34
Dec (top/left)	+54°33′35″.35
Dec (top/right)	+54°05′58″.20
Dec (bottom/right)	+54°08′04″.43
Dec (bottom/left)	+54°35′43″.21

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Contribution Index (beta):

The Pinwheel Galaxy and Supernova SN 2023ixf

The Pinwheel Galaxy and Supernova SN 2023ixf

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Image Index:

Contribution Index (beta):

The Pinwheel Galaxy and Supernova SN 2023ixf

The Pinwheel Galaxy and Supernova SN 2023ixf

Equipment

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