MisV1147
Profile
MisV1147 = V730 Cep
R.A. | 22h54m03s.78 |
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Decl. | +58o54'02".1 | (2000.0) |
Mag. | 12.8-15.9visual |
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Type | ISA |
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= 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)
SIMBAD Query
AAVSO VSX Database
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
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MisV1147: Young Stellar Object
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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 by MISAO Project
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 |
2010 Sept. 24.59897 | 13.1 | C | Youichirou Nakashima |
2010 Sept. 24.60030 | 12.9 | C | Youichirou Nakashima |
2010 Sept. 24.60164 | 12.9 | C | Youichirou Nakashima |
2010 Oct. 10.59438 | 12.6 | C | Youichirou Nakashima |
2010 Oct. 10.59571 | 12.5 | C | Youichirou Nakashima |
2010 Oct. 10.59705 | 12.5 | C | Youichirou Nakashima |
2010 Oct. 10.60668 | 12.5 | C | Youichirou Nakashima |
2010 Nov. 1.55578 | 12.6 | C | Youichirou Nakashima |
2010 Nov. 1.55711 | 12.5 | C | Youichirou Nakashima |
2010 Nov. 1.55845 | 12.4 | C | Youichirou Nakashima |
2010 Nov. 1.56413 | 12.4 | C | Youichirou Nakashima |
2010 Nov. 24.46020 | 12.3 | C | Youichirou Nakashima |
2010 Nov. 24.46153 | 12.2 | C | Youichirou Nakashima |
2010 Nov. 24.46287 | 12.2 | C | Youichirou Nakashima |
2010 Nov. 24.46759 | 12.2 | C | Youichirou Nakashima |
2011 Nov. 15.62880 | 14.6 | C | Youichirou Nakashima |
2012 June 9.74950 | 13.9 | C | Youichirou Nakashima |
2012 June 9.75090 | 13.9 | C | Youichirou Nakashima |
2012 June 9.75227 | 13.7 | C | Youichirou Nakashima |
2012 June 9.75362 | 13.9 | C | Youichirou Nakashima |
2012 July 17.72713 | 14.6 | C | Youichirou Nakashima |
2012 July 17.72850 | 14.5 | C | Youichirou Nakashima |
2012 July 17.72985 | 14.6 | C | Youichirou Nakashima |
2012 July 17.73120 | 14.7 | C | Youichirou Nakashima |
2012 Aug. 1.76177 | 12.5 | C | Youichirou Nakashima |
2012 Aug. 1.76313 | 12.5 | C | Youichirou Nakashima |
2012 Aug. 1.76449 | 12.5 | C | Youichirou Nakashima |
2012 Aug. 18.70360 | 12.1 | C | Youichirou Nakashima |
2012 Aug. 18.70632 | 12.0 | C | Youichirou Nakashima |
2012 Sept. 19.56154 | 12.4 | C | Youichirou Nakashima |
2012 Sept. 19.56289 | 12.4 | C | Youichirou Nakashima |
2012 Sept. 23.65595 | 12.5 | C | Youichirou Nakashima |
2012 Sept. 23.65730 | 12.5 | C | Youichirou Nakashima |
2012 Sept. 23.65866 | 12.4 | C | Youichirou Nakashima |
2012 Sept. 23.66002 | 12.4 | C | Youichirou Nakashima |
2012 Oct. 3.60613 | 12.5 | C | Youichirou Nakashima |
2012 Oct. 3.60749 | 12.4 | C | Youichirou Nakashima |
2012 Oct. 3.60884 | 12.4 | C | Youichirou Nakashima |
2012 Oct. 3.61021 | 12.4 | C | Youichirou Nakashima |
2012 Oct. 20.58718 | 12.1 | C | Youichirou Nakashima |
2012 Oct. 20.58853 | 12.1 | C | Youichirou Nakashima |
2012 Oct. 20.58988 | 12.0 | C | Youichirou Nakashima |
2012 Oct. 20.59125 | 12.0 | C | Youichirou Nakashima |
2012 Oct. 24.45841 | 12.2 | C | Youichirou Nakashima |
2012 Oct. 24.45977 | 12.1 | C | Youichirou Nakashima |
2012 Oct. 24.46112 | 12.1 | C | Youichirou Nakashima |
2012 Oct. 24.46249 | 12.1 | C | Youichirou Nakashima |
2012 Oct. 28.62560 | 12.2 | C | Youichirou Nakashima |
2012 Oct. 28.62696 | 12.1 | C | Youichirou Nakashima |
2012 Oct. 28.62832 | 12.0 | C | Youichirou Nakashima |
2012 Oct. 28.62968 | 12.0 | C | Youichirou Nakashima |
2013 Jan. 2.44672 | 12.5 | C | Youichirou Nakashima |
2013 Jan. 2.44809 | 12.4 | C | Youichirou Nakashima |
2013 Sept. 19.51492 | 13.4 | C | Youichirou Nakashima |
2013 Sept. 19.51628 | 13.4 | C | Youichirou Nakashima |
2013 Sept. 19.51764 | 13.3 | C | Youichirou Nakashima |
2013 Nov. 8.59853 | 14.3 | C | Youichirou Nakashima |
2014 Apr. 14.76223 | 13.6 | C | Youichirou Nakashima |
2014 Apr. 14.76498 | 13.4 | C | Youichirou Nakashima |
2014 Apr. 14.76772 | 13.6 | C | Youichirou Nakashima |
2014 May 22.69978 | 13.9 | C | Youichirou Nakashima |
2014 May 22.70252 | 13.8 | C | Youichirou Nakashima |
2014 May 22.70527 | 13.8 | C | Youichirou Nakashima |
2014 May 22.70802 | 13.9 | C | Youichirou Nakashima |
2014 Sept. 22.66056 | 12.3 | C | Youichirou Nakashima |
2014 Sept. 22.66331 | 12.2 | C | Youichirou Nakashima |
2014 Sept. 22.66605 | 12.3 | C | Youichirou Nakashima |
2015 Aug. 1.72329 | 14.2 | C | Youichirou Nakashima |
2015 Aug. 1.72603 | 14.0 | C | Youichirou Nakashima |
2015 Aug. 1.72878 | 14.1 | C | Youichirou Nakashima |
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