Arp26, M101 (with and without supernova) (AnaTa)

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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Arp26, M101 (with and without supernova)

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Arp26, M101 (with and without supernova)

Two pictures were captured before and after supernova (green arrow on B panel) appearance[b]. [/b]Pre-supernova image was captured by Dwain Bostick with Esprit 100ED on Texas Star Party (TSP) May 14-24, 2022. Integration is only 2h. Post-supernova image capture at Bortle 7 is described here; started on 17 May (pre-supernova time) and finished on 1 June.

Processing:
RGB are combined.
Cropping for RGB and Lum
Color Colib for RGB
Blur and Noise XT for RGB and Lum
Manual stretching (with HT) RGB and Lum
LRGB
Noise XT again
Stretching again
Star XT. These stars have been saved for adding at the end.
Simple Lum mask
Local Histogram Equalization: Kernel radius of 40, 80 and then 220
Multiscale-median transform for sharpness.
Curves: saturation and brightness are manipulated.
Mask off.
Saturated stars are added.
Done

Final
Original
C

C

Title: Updated info

Uploaded: ...

Galaxies (Arp)

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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.

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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.
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Status	Advanced success
Started	...
Astrometry.net job	7830731
PixInsight job	PJVTUIQNBQ05GKG25K2WAK4J8NJKRUJW
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	14h03m09s.671
RA (top/left)	14h01m39s.717
RA (top/right)	14h04m40s.806
RA (bottom/right)	14h04m40s.277
RA (bottom/left)	14h01m37s.755

Dec (center)	+54°23′10″.77
Dec (top/left)	+54°13′53″.29
Dec (top/right)	+54°14′08″.74
Dec (bottom/right)	+54°32′24″.81
Dec (bottom/left)	+54°32′09″.10

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Arp26, M101 (with and without supernova)

Arp26, M101 (with and without supernova)

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Image Index:

Contribution Index (beta):

Arp26, M101 (with and without supernova)

Arp26, M101 (with and without supernova)

Equipment

Acquisition details

Description

Comments

Revisions

C

Sky plot

Histogram

In these collections

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