Magnitude on 21 Nov › Forums › Spectroscopy › SN2017igf in NGC 3901 › Magnitude on 21 Nov 21 November 2017 at 9:43 pm #578788 David SwanParticipant I’ve just solved the image in Astrometrica. The software also dabbles in photometry: the estimate is 15.1 CV (unfiltered CCD with V mag zeropoint).
