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21P/Giacobini-Zinner

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About this observation
Observer
David Swan
Time of observation
20/06/2018 - 23:08
Object
21P/Giacobini-Zinner
Observing location
Tynemouth, UK
Equipment
200mm SCT @ f/6.3
ASI183MM
Baader UV+IR cut
FireCapture, DeepSkyStacker and Photoshop
Exposure
9 x 10s
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Comments

djswan2002's picture

Resolution ~1 arcsec/px

Aperture radius 6px: mag 15.4

Aperture radius 30px: mag 12.5 - this is close to the reported visual brightness - Shanklin / ast.cam

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