Contains: M 87, NGC 4486, NGC 4478, NGC 4477, NGC 4476, NGC 4474, NGC 4473, NGC 4461, NGC 4459, NGC 4458, NGC 4440, NGC 4438, NGC 4436, The Eyes, NGC 4435, NGC 4431, NGC 4425, NGC 4413, M 86, NGC 4406, NGC 4402, NGC 4388, NGC 4387, IC 3311, M 84, NGC 4374
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M 84, M 86, M 87 , Virgo cluster galaxies

Technical card

Resolution: 3219x2281

Dates: Feb. 8, 2016

Frames:
Astronomik B 31 mm Type IIc: 15x300" -25C bin 1x1
Astronomik G 31 mm Type IIc: 15x300" -25C bin 1x1
Astronomik R 31 mm Type IIc: 15x300" -25C bin 1x1

Integration: 3.8 hours

Darks: ~30

Flats: ~25

Bias: ~30

Avg. Moon age: 29.39 days

Avg. Moon phase: 0.02%

Bortle Dark-Sky Scale: 7.00

Mean SQM: 9.00

Mean FWHM: 2.00

Temperature: 10.00

Astrometry.net job: 955598

RA center: 186.932 degrees

DEC center: 13.007 degrees

Pixel scale: 2.501 arcsec/pixel

Orientation: 86.196 degrees

Field radius: 1.370 degrees

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Author

Duarte Silva
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M 84, M 86, M 87 ,  Virgo cluster galaxies, Duarte Silva