Description: 10th magnitude central star surrouded by a bright halo without detail. Maximum magnitude of the telescope in use.
Campbell's Hydrogen Star
with 10" GSO @ 938x (3')10" GSO
Object: Pk 64+5.1 / Campbell's Hydrogen Star
Obs. place: Veikkari, Hyvinkää, Finland
Date: 5./6.9.2016
NE Lim.mag: 5.8 (zenith)
SQM-L: 19.80 (zenith)
Background sky: 5 (average)
Seeing: 5 (average)
Transparency: 5 (average)
Weather: +12 - +8°C, humidity ~90% (@ midnight), 1019 hPa, no wind,
cirrus @ 23.30).
Altitude: 49°
Description: 10th magnitude central star surrouded by a bright halo without
detail. Maximum magnitude of the telescope in use.
Campbell's Hydrogen Star
with 10" GSO @ 938x (3')