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MisV0002     Profile MisV0002 = V523 Aur R.A. 07h24m03s.56 Decl. +41o26'02".0 (2000.0) Mag. 13.7-14.7C Type EW Period 0.3303555 Epoch 2452725.0794 Digitized Sky Survey GIF image (15 x 15 arcmin) SIMBAD Query AAVSO VSX Database ASAS-3 Light Curve NSVS Light Curve (NSVS 4705573) Discovery Information This is a variable object detected from the 300-mm camera lens or 18-cm reflector images of Comet 52P/Harrington-Abell taken between Dec. 9 and 20 by Ken-ichi Kadota, Ageo City, Saitama, Japan. The magnitude estimated by the PIXY system show that this object is about one mag fainter than usual on Dec. 17. Because it is as bright as usual on the next day, it is probably an eclipsing binary. Special Notes Discovered from the observations of Comet 52P/Harrington-Abell. The comet was at apogee when brightest in 1998 December. Stars near by the comet were observed in details by chance, and the variation of MisV0002 was discovered. Kazuhiro Nakajima's observations revealed it is a W UMa-type (EW) eclipsing variable with a period of 0.3303555 days, brightness range of 1.0 mag. Research and Publication New Variable Stars Discovered in the MISAO Project I: MisV0001-MisV0100 IBVS 4746 Yoshida, S.; Kadota, K. V523 Aur = MisV0002 is a W UMa-type eclipsing variable Nakajima, K.; Yoshida, S.; Kadota, K. Kazuhiro Nakajima's observations Visual and CCD minima of eclipsing binaries during 2003 Variable Star Bulletin No.42 Kazuo Nagai Light Curve V523 Aur = MisV0002 is a W UMa-type eclipsing variable Nakajima, K.; Yoshida, S.; Kadota, K. Observations by MISAO Project Date Mag Filter Observer 1998 Dec. 9.74781 13.3 C Ken-ichi Kadota 1998 Dec. 9.75059 13.3 C Ken-ichi Kadota 1998 Dec. 9.75292 13.6 C Ken-ichi Kadota 1998 Dec. 9.75519 13.3 C Ken-ichi Kadota 1998 Dec. 9.75861 13.6 C Ken-ichi Kadota 1998 Dec. 17.73994 14.7 C Ken-ichi Kadota 1998 Dec. 17.74152 14.3 C Ken-ichi Kadota 1998 Dec. 18.79506 13.3 C Ken-ichi Kadota 1998 Dec. 20.80420 13.5 C Ken-ichi Kadota 1998 Dec. 20.81839 13.5 C Ken-ichi Kadota 2000 Dec. 1.72748 13.3 C Nobuo Ohkura 2000 Dec. 1.72933 13.3 C Nobuo Ohkura 2000 Dec. 1.73118 13.3 C Nobuo Ohkura 2001 Jan. 21.57398 13.6 C Nobuo Ohkura 2002 Jan. 6.61491 13.8 C Nobuo Ohkura 2002 Jan. 6.61687 13.7 C Nobuo Ohkura 2002 Jan. 6.61885 13.8 C Nobuo Ohkura 2007 Mar. 12.51432 13.27 C Nobuo Ohkura and Youichirou Nakashima 2007 Mar. 12.51714 13.28 C Nobuo Ohkura and Youichirou Nakashima 2007 Mar. 14.45231 13.18 C Youichirou Nakashima 2007 Mar. 14.45515 13.16 C Youichirou Nakashima 2007 Mar. 17.44270 13.27 C Youichirou Nakashima 2007 Mar. 17.44552 13.18 C Youichirou Nakashima 2007 Mar. 18.46878 13.29 C Nobuo Ohkura and Youichirou Nakashima 2007 Mar. 18.47162 13.29 C Nobuo Ohkura and Youichirou Nakashima 2007 Mar. 20.49304 14.09 C Nobuo Ohkura and Youichirou Nakashima 2007 Mar. 20.49588 14.03 C Nobuo Ohkura and Youichirou Nakashima 2007 Mar. 21.44309 13.29 C Youichirou Nakashima 2007 Mar. 21.44593 13.29 C Youichirou Nakashima 2007 Mar. 23.44188 13.54 C Nobuo Ohkura and Youichirou Nakashima 2007 Mar. 23.44471 13.49 C Nobuo Ohkura and Youichirou Nakashima 2007 Mar. 23.44755 13.57 C Nobuo Ohkura and Youichirou Nakashima 2007 Mar. 30.45148 13.25 C Youichirou Nakashima 2007 Mar. 30.45432 13.23 C Youichirou Nakashima 2007 Mar. 30.45714 13.17 C Youichirou Nakashima