Exposure Time Calculator


v 2.0.0
Source
Star
Black Body
Galaxy
AGN
Power Law
Flat Spectrum
User Defined
Spectral Type
Temperature
Type
Type
Index
Flux   x 10-12 ergs cm-2s-1Å-1
Spectrum Upload
Redshift   Normalize
Redshift

Magnitude Band
Flux Density
At wavelength  A
Galactic Extinction
RV
E(B - V)
NH x 1021 cm-2
Distance Kpc
AV
E(B-V)
NH
Distance
AV
Background
Dark counts
Output

FOR
Exposure Time  seconds
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Programming & Web interface:Rekhesh Mohan
Additional Inputs:Jayant Murthy (Stellar Spectra)