Home Page Updated on June 16, 2002
Brightening of Nova Cas 1995December 22, 2001
Yoshida, S.; Ohkura, N.
The significant small sudden brightening of V723 Cas = Nova Cas 1995 between 2001 Oct. 13 and 14, about 6 years after the peak in 1995 December, was detected by the MISAO Project.
Star A: USNO-A2.0 1425.01502823 01h04m55s.027 +53o58'08".89 Mag(R):12.2 Mag(B):13.6 Star B: USNO-A2.0 1425.01502160 01h04m53s.189 +54o00'05".21 Mag(R):13.6 Mag(B):14.4 Star C: USNO-A2.0 1425.01510597 01h05m16s.428 +54o00'46".55 Mag(R):13.7 Mag(B):15.1
The table below shows the magnitude data of the nova and three comparison stars measured automatically by the PIXY system 2 from CCD images taken by Nobuo Ohkura, Okayama, Japan.
The table below shows the relative magnitude. The average magnitude of star A, B and C on each date is subtracted from the raw magnitude.
Here is the light curve of the relative magnitude.
The VSNET visual data in 2001 October are as follows:
The small brightening was not detected clearly by visual observers.