Home Page       Updated on August 27, 2010

MisV1147     Profile MisV1147 = V730 Cep R.A. 22h54m03s.78 Decl. +58o54'02".1 (2000.0) Mag. 12.8-15.9visual Type ISA = USNO-A2.0 1425.14257832 22h54m03s.745 +58o54'01".45 Mag(R):15.3 M ag(B):16.0 = HBHA 65-53 22h54m04s.0 +58o54'00" Mag(V):13.6 Digitized Sky Survey GIF image (15 x 15 arcmin) 2MASS Quicklook Image (5 x 5 arcmin) SIMBAD Query ASAS-3 Light Curve Discovery Information Seiichi Yoshida, MISAO Project; Nobuo Ohkura, Okayama, Japan; and Ken-ichi Kadota, MISAO Project, discovered a new variable star MisV1147. It was picked up by Seiichi Yoshida from the candidates of new variable stars detected by the PIXY system 2 from images taken by Nobuo Ohkura, and confirmed by Ken-ichi Kadota. The identification is researched by Taichi Kato (Kyoto University), John Greaves (the United Kingdom), and Seiichi Yoshida. Special Notes It attracted attention due to the identification with a H-alpha emission star HBHA 65-53. The campaign in "vsnet-campaign-unknown" and the MSDG observing campaign were launched, and many visual observers have been monitoring it. It did not show any evident variation in the first half of 2002, however, it showed frequent deep eclipse-like fadings in the latter half of the year. Based on the spectrums taken by Kenzo Kinugasa and Mitsugu Fujii, Taichi Kato revealed MisV1147 is a young stellar object, a Herbig Ae/Be type star. The V-Ic value is different between 2002 January and the period after 2002 October. But the reason is still uncertain. Research and Publication MisV1147: Young Stellar Object Deep Fading of the New Herbig Be Star MisV1147 PASJ: Publ. Astron. Soc. Japan 56, S183-S192, 2004 March 25 M. UEMURA, T. KATO, R. ISHIOKA, S. YOSHIDA, K. KADOTA, N. OHKURA, A. HENDEN, O. PEJCHA, K. KINUGASA, M. FUJII, M. SIMONSEN, J. GREAVES, P. A. DUBOVSKY, G. POYNER, D. WEST, R. J. STINE, D. TAYLOR, M. POXON, E. MUYLLAERT, J. RIPERO, M. RESZELSKI, C. P. JONES Light Curve Visual observations Observations Date Mag Filter Observer 2000 Aug. 30.58736 12.3 C Nobuo Ohkura 2000 Aug. 30.58920 12.3 C Nobuo Ohkura 2000 Aug. 30.59105 12.2 C Nobuo Ohkura 2000 Aug. 30.59291 12.3 C Nobuo Ohkura 2000 Aug. 31.56005 12.6 C Nobuo Ohkura 2000 Aug. 31.56190 12.6 C Nobuo Ohkura 2000 Aug. 31.56375 12.5 C Nobuo Ohkura 2000 Oct. 11.51205 13.5 C Nobuo Ohkura 2000 Oct. 11.51390 13.3 C Nobuo Ohkura 2000 Oct. 11.51575 13.4 C Nobuo Ohkura 2000 Oct. 11.51760 13.8 C Nobuo Ohkura 2000 Oct. 13.50813 13.2 C Nobuo Ohkura 2000 Oct. 13.50998 13.4 C Nobuo Ohkura 2000 Oct. 13.51184 13.5 C Nobuo Ohkura 2000 Oct. 13.51369 13.6 C Nobuo Ohkura 2001 Sept. 17.56744 13.9 C Nobuo Ohkura 2001 Sept. 17.56929 14.3 C Nobuo Ohkura 2001 Sept. 17.57115 14.4 C Nobuo Ohkura 2001 Sept. 17.57300 14.1 C Nobuo Ohkura 2001 Oct. 2.52791 12.5 C Nobuo Ohkura 2001 Oct. 3.53497 12.3 C Nobuo Ohkura 2001 Oct. 3.53693 12.3 C Nobuo Ohkura 2001 Oct. 31.47051 12.3 C Nobuo Ohkura 2001 Oct. 31.47248 12.2 C Nobuo Ohkura 2001 Oct. 31.47444 12.2 C Nobuo Ohkura 2001 Nov. 20.41998 12.2 C Nobuo Ohkura 2001 Nov. 21.42326 12.2 C Nobuo Ohkura 2001 Nov. 21.42523 12.3 C Nobuo Ohkura 2002 Aug. 5.57659 12.7 C Yusuke Ezaki 2002 Aug. 5.58510 12.7 C Yusuke Ezaki 2007 Sept. 5.64168 12.4 C Youichirou Nakashima 2007 Sept. 5.64377 12.4 C Youichirou Nakashima 2007 Sept. 5.65694 12.3 C Youichirou Nakashima 2007 Oct. 16.63584 12.6 C Nobuo Ohkura and Youichirou Nakashima 2007 Oct. 16.63792 12.6 C Nobuo Ohkura and Youichirou Nakashima 2007 Oct. 16.63999 12.7 C Nobuo Ohkura and Youichirou Nakashima 2007 Oct. 28.53736 12.6 C Youichirou Nakashima 2007 Nov. 2.58608 12.1 C Youichirou Nakashima 2007 Nov. 2.58851 12.1 C Youichirou Nakashima 2007 Nov. 2.59337 12.1 C Youichirou Nakashima 2007 Nov. 3.54764 12.0 C Youichirou Nakashima 2007 Nov. 7.51361 12.3 C Youichirou Nakashima 2007 Nov. 18.49694 12.0 C Youichirou Nakashima 2007 Nov. 18.49902 12.0 C Youichirou Nakashima