Welcome to the RCT 1.3-meter Exposure Time Calculator

This form is shamelessly borrowed and modified from the NOAO exposure time calculator (CCDTIME).

Integration time in seconds
Signal-to-noise ratio

Seeing (arcsecs):      Airmass:      CCD summing factor
Lunar Phase (0-14 days from new moon, 0 = new, 14 = full):   

Last modified: Tue May 1 01:27:37 CDT 2012