Mayall II (G1) with 4.7"
Sky-Watcher @ 120x4.7" Sky-Watcher
Object: G1 / Mayall II
Obs. place: Hindsby, Sipoo, Finland
Date: 19./20.8.2009
Bortle class: Class 4 (rural / suburban transition)
NE Lim.mag: 6.6m (east)
Background sky: 3
Seeing: 2
Transparency: 2
Weather: +9.0°C, humidity ~90%, air pressure 1022 HPa, no wind
Description: 14th magnitude & stellar.
Mayall II (G1) with 4.7"
Sky-Watcher @ 120x