Exposure times on PIRATE Mark 2


Peak counts for different filters
Filter
exposure time
magnitude
peak count
B



V
20 s
V = 10.0
43,000
R
30 s R = 10.0
47,000
I
80 s
I = 10.0
44,000
Clear




The quoted counts give an indication only. Actual peak counts depend on airmass and atmospheric conditions.