wfgs2 Exposure Time Calculator for imaging
These calcutation based on the NGC 869 observation.
Calculate S/N ratio
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SN ~
B
V
Rc
Ic
g'
r'
i'
band
mag
AB mag
Vega mag
Exposure time
sec
Calculate Exposure time
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Exposure time ~
seconds
B
V
Rc
Ic
g'
r'
i'
band
mag
AB mag
Vega mag
S/N ratio
last update : 20 Mar. 2024