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Nova CMa 2018, 





    
        

            Freestar8n
Nova CMa 2018

Nova CMa 2018

Technical card

Resolution: 2644x2043

Dates:March 31, 2018

Frames:
Astrodon Sloan g' 1.25": 15x30" (gain: 100.00) -10C
Astrodon Sloan i' 1.25": 11x30" (gain: 100.00) -10C
Astrodon Sloan r' 1.25": 13x30" (gain: 100.00) -10C

Integration: 0.3 hours

Avg. Moon age: 14.75 days

Avg. Moon phase: 100.00%

Mean FWHM: 1.70

Astrometry.net job: 1992297

RA center: 108.441 degrees

DEC center: -21.209 degrees

Pixel scale: 0.397 arcsec/pixel

Orientation: 6.266 degrees

Field radius: 0.184 degrees

Locations: Patio, Melbourne, Victoria, Australia

Data source: Backyard

Description

Nova in Canis Major, 2018

Calibrated color image from Sloan i' r' g' filters, calibrated using APASS magnitudes of field stars.

The star is in the very center and appears reddish.

North is up in this cropped view.

No processing other than levels in Photoshop.

On March 31 at 10:00 UT I measure the Sloan magnitudes to be:

i' = 10.35, r' = 10.80, g' = 11.79 g'-r' = 0.94

Using the Jordi 2006 conversion formula, this maps to:

B = 12.30, V=11.24, R=10.72 B-V = 1.06

Comments

Author

Freestar8n
Freestar8n
License: None (All rights reserved)
500
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Nova CMa 2018, 





    
        

            Freestar8n