Home Page Updated on December 16, 2020
MisV1317
|
| R.A. | 03h03m53s.37 | |
| Decl. | +57o03'34".6 | (2000.0) |
| Mag. | 11.90-12.70C | |
| Type | EB | |
| Period | 1.28482 | |
| Epoch | 2453430.9584 |
= GSC 3709-00849 03h03m53s.41 +57o03'34".3 Error:0.3" Mag:11.88 Ma gError:0.40 Band:1 Class:0 Plate:01W1 Flag:T Epoch:04 NOV 1983 = GSC 3709-00849 03h03m53s.40 +57o03'34".3 Error:0.3" Mag:11.51 Ma gError:0.40 Band:1 Class:0 Plate:036E Flag:T Epoch:11 OCT 1983 = USNO-A2.0 1425.04099502 03h03m53s.391 +57o03'34".88 Mag(R):11.5 M ag(B):12.6
Digitized Sky Survey GIF image (15 x 15 arcmin)
NSVS Light Curve (NSVS 1942509)
Discovery Information
Seiichi Yoshida, MISAO Project; Nobuo Ohkura, Okayama, Japan; and Ken-ichi Kadota, MISAO Project, discovered a new variable star MisV1317.
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.
Special Notes
Kazuhiro Nakajima's observations revealed it is a beta Lyr-type (EB) eclipsing variable with unfiltered CCD variations of 11.90 mag at maximum, 12.70 mag at primary minimum, 12.12 mag at secondary minimum, and period of 1.28482 days (IBVS 5700).
Atsushi Miyashita caught the primary eclipse on 2008 Feb. 21 and confirmed that the ephemeris error is less than 5 minutes (light curve).
Research and Publication
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Reports on New Discoveries
IBVS 5700
Nakajima, K.; Yoshida, S.; Ohkura, N.; Kadota, K.
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Kazuhiro Nakajima's observations
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Visual and CCD minima of eclipsing binaries during 2005
Variable Star Bulletin No.44
Kazuo Nagai
Light Curve
Reports on New Discoveries
IBVS 5700
Nakajima, K.; Yoshida, S.; Ohkura, N.; Kadota, K.
Observations by MISAO Project
| Date | Mag | Filter | Observer |
|---|---|---|---|
| 1999 Sept. 28.76131 | 11.6 | C | KenIchi Kadota |
| 1999 Sept. 28.76175 | 11.6 | C | KenIchi Kadota |
| 2000 Mar. 1.53760 | 11.56 | C | Nobuo Ohkura |
| 2000 Mar. 1.53946 | 11.67 | C | Nobuo Ohkura |
| 2000 Mar. 1.54130 | 11.68 | C | Nobuo Ohkura |
| 2000 Dec. 25.49800 | 11.69 | C | Nobuo Ohkura |
| 2000 Dec. 25.49985 | 11.61 | C | Nobuo Ohkura |
| 2000 Dec. 25.50170 | 11.64 | C | Nobuo Ohkura |
| 2001 Nov. 14.60715 | 11.61 | C | Nobuo Ohkura |
| 2001 Nov. 14.60913 | 11.57 | C | Nobuo Ohkura |
| 2001 Nov. 14.61110 | 11.60 | C | Nobuo Ohkura |
| 2001 Nov. 22.57389 | 12.26 | C | Nobuo Ohkura |
| 2001 Nov. 22.57586 | 12.25 | C | Nobuo Ohkura |
| 2001 Nov. 22.57782 | 12.20 | C | Nobuo Ohkura |
| 2001 Nov. 22.57979 | 12.25 | C | Nobuo Ohkura |
| 2001 Nov. 24.57313 | 11.72 | C | Nobuo Ohkura |
| 2003 Nov. 1.60346 | 11.59 | C | Nobuo Ohkura |
| 2003 Nov. 1.60738 | 11.56 | C | Nobuo Ohkura |
| 2004 Sept. 30.72196 | 11.99 | Rc | Nobuo Ohkura |
| 2004 Sept. 30.72198 | 11.93 | Rc | Nobuo Ohkura |
| 2004 Sept. 30.72588 | 12.01 | Rc | Nobuo Ohkura |
| 2004 Sept. 30.72591 | 11.91 | Rc | Nobuo Ohkura |
| 2004 Sept. 30.72981 | 12.01 | Rc | Nobuo Ohkura |
| 2004 Sept. 30.72984 | 11.89 | Rc | Nobuo Ohkura |
| 2004 Sept. 30.73395 | 11.87 | Rc | Nobuo Ohkura |
| 2004 Sept. 30.73789 | 11.85 | Rc | Nobuo Ohkura |
| 2004 Sept. 30.74184 | 11.97 | Rc | Nobuo Ohkura |
| 2004 Oct. 3.71475 | 11.95 | Rc | Nobuo Ohkura |
| 2004 Oct. 6.68675 | 11.89 | Rc | Nobuo Ohkura |
| 2004 Oct. 6.69067 | 11.89 | Rc | Nobuo Ohkura |
| 2004 Oct. 6.69461 | 12.03 | Rc | Nobuo Ohkura |
| 2004 Oct. 14.66076 | 11.89 | Rc | Nobuo Ohkura |
| 2004 Oct. 14.66469 | 11.85 | Rc | Nobuo Ohkura |
| 2004 Oct. 14.66862 | 11.87 | Rc | Nobuo Ohkura |
| 2004 Oct. 14.67256 | 11.87 | Rc | Nobuo Ohkura |
| 2004 Oct. 21.62984 | 11.73 | C | Nobuo Ohkura |
| 2004 Oct. 21.63376 | 11.62 | C | Nobuo Ohkura |
| 2004 Oct. 23.63646 | 11.59 | C | Nobuo Ohkura |
| 2004 Oct. 23.64038 | 11.61 | C | Nobuo Ohkura |
| 2004 Oct. 24.62685 | 11.74 | C | Nobuo Ohkura |
| 2004 Oct. 24.63079 | 11.75 | C | Nobuo Ohkura |
| 2004 Oct. 27.61922 | 11.63 | C | Nobuo Ohkura |
| 2004 Oct. 28.61611 | 11.69 | C | Nobuo Ohkura |
| 2004 Oct. 28.62003 | 11.64 | C | Nobuo Ohkura |
| 2004 Nov. 3.61498 | 11.65 | C | Nobuo Ohkura |
| 2004 Nov. 6.58279 | 11.61 | C | Nobuo Ohkura |
| 2004 Nov. 6.58671 | 11.65 | C | Nobuo Ohkura |
| 2004 Nov. 7.57956 | 11.63 | C | Nobuo Ohkura |
| 2004 Nov. 7.58350 | 11.64 | C | Nobuo Ohkura |
| 2004 Nov. 8.58199 | 11.72 | C | Nobuo Ohkura |
| 2004 Nov. 8.58593 | 11.65 | C | Nobuo Ohkura |
| 2004 Nov. 12.58015 | 11.64 | C | Nobuo Ohkura |
| 2004 Nov. 21.54574 | 11.67 | C | Nobuo Ohkura |
| 2004 Nov. 21.54966 | 11.61 | C | Nobuo Ohkura |
| 2004 Nov. 24.54926 | 11.70 | C | Nobuo Ohkura |
| 2004 Nov. 24.55319 | 11.62 | C | Nobuo Ohkura |
| 2004 Nov. 25.56038 | 11.68 | C | Nobuo Ohkura |
| 2004 Nov. 29.48899 | 11.99 | Rc | Nobuo Ohkura |
| 2004 Nov. 29.49293 | 11.84 | Rc | Nobuo Ohkura |
| 2004 Nov. 29.49686 | 11.89 | Rc | Nobuo Ohkura |
| 2004 Nov. 29.50081 | 11.91 | Rc | Nobuo Ohkura |
| 2004 Dec. 14.49534 | 11.99 | Rc | Nobuo Ohkura |
| 2004 Dec. 14.49927 | 11.94 | Rc | Nobuo Ohkura |
| 2004 Dec. 14.50322 | 11.98 | Rc | Nobuo Ohkura |