Home Page Updated on December 7, 2003
MisV1140 is an Algol-type eclipsing variableDecember 7, 2003
Nakajima, K.; Yoshida, S.; Ohkura, N.
Kazuhiro Nakajima revealed that MisV1140 is an Algol-type eclipsing variable with unfiltered CCD variations of 13.50 mag at maximum, 14.8 mag at primary minimum, 13.68 mag at secondary minimum, and period of 4.4479 days.
MisV1140, R.A. 22h39m58s.95, Decl. +47o20'16".4 (J2000.0), is a new variable star discovered in the course of the MISAO Project from Nobuo Ohkura's unfiltered CCD images taken on Aug. 4, Sept. 17 and Oct. 10 in 2000.
Nakajima observed it on 13 nights between Aug. 23 and Oct. 29 in 2003 with 0.25-m f/5 Schmidt-Cassegrain and CV-04 CCD, and caught four minima.
The period is derived as 4.4479 days from these minima.
Here is the light curve of MisV1140 from total 1645 observations. Comparison star is TYC2-3624.0786.1, R.A. 22h40m08.8s, Decl. +47o19'49" (2000.0), 11.40 mag(V). The phases on the figure were calculated by the ephemeris: