Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  NGC 2959  ·  NGC2959  ·  NGC2961
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SN 2021bbm in NGC 2959, 


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SN 2021bbm in NGC 2959

Imaging telescopes or lenses: Sky-Watcher QUATTRO-10CF 10" f/4 Newton Carbon

Imaging cameras: ZWO ASI 294MC Pro (cooled)

Mounts: Sky-Watcher EQ6-R Pro EQMOD

Guiding telescopes or lenses: Guidescope 60mm f=240mm

Guiding cameras: Datyson T7C Guidecam

Software: APP  ·  Noiseware Community Edition  ·  APT  ·  PHD2 Guiding

Accessory: GPU Optics Pal Gyulai CC

Dates:Feb. 20, 2021

Frames: 17x300" (gain: 120.00) -10C bin 1x1

Integration: 1.4 hours

Darks: ~25

Flats: ~33

Flat darks: ~33

Avg. Moon age: 8.02 days

Avg. Moon phase: 56.80%

Bortle Dark-Sky Scale: 4.00

Temperature: 3.00

Astrometry.net job: 4241589

RA center: 9h 45' 37"

DEC center: +68° 35' 24"

Pixel scale: 0.960 arcsec/pixel

Orientation: 12.843 degrees

Field radius: 0.671 degrees

Resolution: 4162x2834

Data source: Own remote observatory

Remote source: Non-commercial independent facility


The third and last supernova beside SN 2021biz and SN 2021do.

To the moon here came some light pollution from the street. I never had so much trouble to get this out of a picture. This resulted in an immense loss of color, I think. But I couldn't have processed the image much better.

There are few wide angle images of M81 with this galaxy, so I assume this is also a debut.

More data to the SN itself here.