SN 2021gmj in NGC 3310, CPH, Denmark (Niels V. Christensen)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: NGC 3310

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SN 2021gmj in NGC 3310, CPH, Denmark

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SN 2021gmj in NGC 3310, CPH, Denmark

SN 2021gmj in NGC 3310, CPH, Denmark.

Galaxy exposures, 16" F6.2 SCT, IR-pass+RGB: 41x60sec+59x120sec

Subs/frames was calibrated with darks & flats.

As usual it's taken in a light polluted area, Bortle 6 sky looking south, Bortle 7 sky the other directions/surroundings.

My home build observatory is placed in my front yard/in the "red light" pollution zone, have a look here,

Red Zone

FYI,

https://www.virtualtelescope.eu/2021/03/20/supernova-candidate-at-2021gmj-in-ngc-3310-galaxy-an-image-20-mar-2021/

Kind regards Niels

Original
B
C
Final
D

B

Description: Frames added 3. April-2021. Total exposure during 2 nights, IR-pass-RGB=100x60sec+118x120sec.

Uploaded: ...

C

Description: Minor adjustments performed :-)

Uploaded: ...

D

Description: Take a closer look, a cropped size 66% view :-)

Uploaded: ...

Schmidt-Cassegrain Telescope (SCT) Imagers
Light Polluted skies
CMOS Imagers
Supernova Imagers (no remnants pls😉)
"Nordish by nature"
Cooled Color Cams

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Status	Advanced success
Started	...
Astrometry.net job	4379022
PixInsight job	OK50VV56OLO0XV3Q46FB64J72R6069IK
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	10h38m50s.536
RA (top/left)	10h38m13s.184
RA (top/right)	10h38m22s.560
RA (bottom/right)	10h39m27s.753
RA (bottom/left)	10h39m19s.178

Dec (center)	+53°31′03″.79
Dec (top/left)	+53°36′44″.47
Dec (top/right)	+53°24′21″.14
Dec (bottom/right)	+53°25′22″.50
Dec (bottom/left)	+53°37′46″.17

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SN 2021gmj in NGC 3310, CPH, Denmark

SN 2021gmj in NGC 3310, CPH, Denmark

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SN 2021gmj in NGC 3310, CPH, Denmark

SN 2021gmj in NGC 3310, CPH, Denmark

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