Home Page Updated on December 16, 2020
MisV1022
|
| R.A. | 20h27m54s.15 | |
| Decl. | +31o43'57".4 | (2000.0) |
| Mag. | 12.7-17.6Rc | |
| Type | M | |
| Period | 270 | |
| Epoch | 2456955 |
= USNO-A2.0_1200.15152235 20 27 54.145 +31 43 57.37 14.2R 16.8B = 2MASS 202754.114 +314356.77 (2000.0) 9.409 8.304 7.794
Digitized Sky Survey GIF image (15 x 15 arcmin)
Discovery Information
Seiichi Yoshida, MISAO Project; Nobuo Ohkura, Okayama, Japan; and Ken-ichi Kadota, Ageo, Saitama, Japan, discovered a new variable star MisV1022.
It was picked up by Yoshida from the candidates of new variable stars detected by the PIXY system from images taken by Ohkura comparing with images taken by Kadota. Kadota and Yoshida judged it as a real variable star.
The identification with the 2MASS data is by Taichi Kato.
Special Notes
Tsutomu Fujiwara's observations revealed that MisV1022 is a Mira-type variable with a period of 270 days (light curve).
Research and Publication
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MisV1022 Light Curve
Fujiwara, T.
Light Curve
Observations by MISAO Project
| Date | Mag | Filter | Observer |
|---|---|---|---|
| 1999 June 5.74300 | 12.3 | C | Ken-ichi Kadota |
| 1999 June 5.74346 | 12.4 | C | Ken-ichi Kadota |
| 2000 July 9.58683 | 13.7 | C | Nobuo Ohkura |
| 2000 July 9.58868 | 13.8 | C | Nobuo Ohkura |
| 2012 Aug. 6.56682 | 15.1 | V | Tsutomu Fujiwara |
| 2012 Aug. 6.56800 | 13.4 | Rc | Tsutomu Fujiwara |
| 2012 Aug. 19.51116 | 13.7 | Rc | Tsutomu Fujiwara |
| 2012 Aug. 19.51248 | 15.7 | V | Tsutomu Fujiwara |
| 2012 Sept. 6.51926 | 14.2 | Rc | Tsutomu Fujiwara |
| 2012 Sept. 13.53667 | 14.7 | Rc | Tsutomu Fujiwara |
| 2012 Sept. 26.57365 | 15.3 | Rc | Tsutomu Fujiwara |
| 2012 Oct. 15.53225 | 16.1 | Rc | Tsutomu Fujiwara |
| 2012 Oct. 20.50520 | 16.1 | Rc | Tsutomu Fujiwara |
| 2012 Nov. 1.55950 | [14.6 | Rc | Tsutomu Fujiwara |
| 2012 Nov. 18.46118 | 17.5 | Rc | Tsutomu Fujiwara |
| 2013 May 31.62198 | 14.0 | Rc | Tsutomu Fujiwara |
| 2013 July 8.51005 | 15.2 | Rc | Tsutomu Fujiwara |
| 2013 July 16.57175 | 15.9 | Rc | Tsutomu Fujiwara |
| 2013 July 31.56021 | [16.1 | Rc | Tsutomu Fujiwara |
| 2013 Aug. 6.58543 | [16.1 | Rc | Tsutomu Fujiwara |
| 2013 Aug. 25.52361 | 16.4 | Rc | Tsutomu Fujiwara |
| 2013 Sept. 5.56580 | 16.8 | Rc | Tsutomu Fujiwara |
| 2013 Sept. 10.59035 | 17.4 | Rc | Tsutomu Fujiwara |
| 2013 Sept. 23.44051 | 16.8 | Rc | Tsutomu Fujiwara |
| 2013 Oct. 1.58155 | 17.5 | Rc | Tsutomu Fujiwara |
| 2013 Oct. 6.53978 | 17.2 | Rc | Tsutomu Fujiwara |
| 2013 Oct. 12.48347 | [16.7 | Rc | Tsutomu Fujiwara |
| 2013 Oct. 21.54186 | 16.2 | Rc | Tsutomu Fujiwara |
| 2013 Oct. 26.54600 | 15.9 | Rc | Tsutomu Fujiwara |
| 2013 Nov. 4.50553 | 15.3 | Rc | Tsutomu Fujiwara |
| 2013 Nov. 11.49645 | 15.2 | Rc | Tsutomu Fujiwara |
| 2013 Nov. 23.48642 | 14.6 | Rc | Tsutomu Fujiwara |
| 2013 Dec. 1.47610 | 14.8 | Rc | Tsutomu Fujiwara |
| 2013 Dec. 8.47957 | 14.2 | Rc | Tsutomu Fujiwara |
| 2013 Dec. 28.42744 | 13.3 | Rc | Tsutomu Fujiwara |
| 2014 Jan. 1.39830 | 13.3 | Rc | Tsutomu Fujiwara |
| 2014 Jan. 5.40868 | 13.2 | Rc | Tsutomu Fujiwara |
| 2014 Jan. 13.38228 | 13.1 | Rc | Tsutomu Fujiwara |
| 2014 July 14.56663 | [16.0 | Rc | Tsutomu Fujiwara |
| 2014 July 21.54547 | [15.9 | Rc | Tsutomu Fujiwara |
| 2014 July 25.56222 | 15.7 | Rc | Tsutomu Fujiwara |
| 2014 Aug. 7.53181 | 15.6 | Rc | Tsutomu Fujiwara |
| 2014 Aug. 17.55713 | 15.3 | Rc | Tsutomu Fujiwara |
| 2014 Aug. 21.54860 | 15.1 | Rc | Tsutomu Fujiwara |
| 2014 Aug. 26.54260 | 15.0 | Rc | Tsutomu Fujiwara |
| 2014 Sept. 7.51800 | [14.6 | Rc | Tsutomu Fujiwara |
| 2014 Sept. 11.57646 | 14.3 | Rc | Tsutomu Fujiwara |
| 2014 Sept. 13.55308 | 14.3 | Rc | Tsutomu Fujiwara |
| 2014 Sept. 20.47714 | 14.0 | Rc | Tsutomu Fujiwara |
| 2014 Sept. 26.57006 | 13.7 | Rc | Tsutomu Fujiwara |
| 2014 Sept. 29.54264 | 13.7 | Rc | Tsutomu Fujiwara |
| 2014 Oct. 6.55485 | 13.5 | Rc | Tsutomu Fujiwara |
| 2014 Oct. 17.58648 | 13.4 | Rc | Tsutomu Fujiwara |
| 2014 Oct. 23.52439 | 13.4 | Rc | Tsutomu Fujiwara |
| 2014 Oct. 28.53189 | 13.3 | Rc | Tsutomu Fujiwara |
| 2014 Nov. 3.50071 | 13.4 | Rc | Tsutomu Fujiwara |
| 2014 Nov. 10.53677 | 13.4 | Rc | Tsutomu Fujiwara |
| 2014 Nov. 15.50954 | 13.8 | Rc | Tsutomu Fujiwara |
| 2014 Nov. 20.46125 | 14.0 | Rc | Tsutomu Fujiwara |
| 2014 Nov. 23.43671 | 14.0 | Rc | Tsutomu Fujiwara |
| 2014 Nov. 27.47193 | 14.2 | Rc | Tsutomu Fujiwara |
| 2014 Nov. 27.49972 | 14.6 | Rc | Tsutomu Fujiwara |
| 2014 Dec. 5.47719 | 14.4 | Rc | Tsutomu Fujiwara |
| 2014 Dec. 14.44319 | 15.6 | Rc | Tsutomu Fujiwara |
| 2014 Dec. 29.42521 | 15.2 | Rc | Tsutomu Fujiwara |
| 2014 Dec. 30.41830 | 15.2 | Rc | Tsutomu Fujiwara |
| 2015 Jan. 3.40708 | [14.9 | Rc | Tsutomu Fujiwara |
| 2015 Jan. 10.38949 | [15.1 | Rc | Tsutomu Fujiwara |
| 2015 June 12.56463 | 14.0 | Rc | Tsutomu Fujiwara |
| 2015 June 23.53403 | 13.7 | Rc | Tsutomu Fujiwara |
| 2015 June 28.55104 | 13.1 | Rc | Tsutomu Fujiwara |
| 2015 July 10.58125 | 12.7 | Rc | Tsutomu Fujiwara |
| 2015 July 13.55749 | 13.2 | Rc | Tsutomu Fujiwara |
| 2015 July 14.52962 | 12.9 | Rc | Tsutomu Fujiwara |
| 2015 July 19.53466 | 12.8 | Rc | Tsutomu Fujiwara |
| 2015 July 24.57378 | 12.9 | Rc | Tsutomu Fujiwara |
| 2015 July 30.57978 | 12.8 | Rc | Tsutomu Fujiwara |
| 2015 Aug. 5.57862 | 13.1 | Rc | Tsutomu Fujiwara |
| 2015 Aug. 10.58512 | 13.2 | Rc | Tsutomu Fujiwara |
| 2015 Aug. 27.51591 | 13.6 | Rc | Tsutomu Fujiwara |
| 2015 Sept. 4.58227 | 13.9 | Rc | Tsutomu Fujiwara |
| 2015 Sept. 13.49676 | 14.3 | Rc | Tsutomu Fujiwara |
| 2015 Sept. 21.64944 | 14.7 | Rc | Tsutomu Fujiwara |
| 2015 Sept. 29.52247 | 15.1 | Rc | Tsutomu Fujiwara |
| 2015 Oct. 2.53726 | 15.1 | Rc | Tsutomu Fujiwara |
| 2015 Oct. 7.51433 | 15.5 | Rc | Tsutomu Fujiwara |
| 2015 Oct. 13.52696 | 15.4 | Rc | Tsutomu Fujiwara |
| 2015 Oct. 17.55579 | 15.7 | Rc | Tsutomu Fujiwara |
| 2015 Oct. 21.54730 | 15.7 | Rc | Tsutomu Fujiwara |
| 2015 Oct. 25.51757 | 16.2 | Rc | Tsutomu Fujiwara |
| 2015 Oct. 31.51046 | 16.3 | Rc | Tsutomu Fujiwara |
| 2015 Nov. 4.52539 | [16.0 | Rc | Tsutomu Fujiwara |
| 2015 Nov. 12.50980 | 16.8 | Rc | Tsutomu Fujiwara |
| 2015 Nov. 15.47606 | [15.8 | Rc | Tsutomu Fujiwara |
| 2015 Nov. 20.51222 | 17.3 | Rc | Tsutomu Fujiwara |
| 2015 Nov. 24.49545 | [14.8 | Rc | Tsutomu Fujiwara |
| 2015 Nov. 28.46523 | 16.9 | Rc | Tsutomu Fujiwara |
| 2015 Dec. 7.46326 | 17.6 | Rc | Tsutomu Fujiwara |
| 2015 Dec. 14.47052 | [14.8 | Rc | Tsutomu Fujiwara |
| 2015 Dec. 30.41814 | [15.3 | Rc | Tsutomu Fujiwara |
| 2016 Jan. 3.41223 | [15.2 | Rc | Tsutomu Fujiwara |