Home Page Updated on December 16, 2020
MisV1429
|
| R.A. | 09h08m07s.23 | |
| Decl. | +42o12'20".8 | (2000.0) |
| Mag. | 14.35-14.90CV | |
| Type | EA/RS | |
| Period | 0.4629 | |
| Epoch | 2454589.18 |
= GSC 2987-01508 09h08m07s.21 +42o12'20".1 Error:0.2" Mag:14.52 Ma gError:0.25 Band:1 Class:0 Plate:021G Flag:F Epoch:09 JAN 1983 = USNO-A2.0 1275.07450911 09h08m07s.253 +42o12'20".71 Mag(R):14.7 M ag(B):16.3
Digitized Sky Survey GIF image (15 x 15 arcmin)
NSVS Light Curve (NSVS 4831207)
Discovery Information
Seiichi Yoshida, MISAO Project; Nobuo Ohkura and Youichirou Nakashima, Okayama, Japan, discovered new variable stars MisV1428 - MisV1431.
They were 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 Youichirou Nakashima. Their variations were confirmed by Yoshida and Nakashima.
Special Notes
Stefan Huemmerich and Klaus Bernhard reported the LINEAR and Catalina Sky Survey data revealed it is an Algol-type eclipsing variable with a chromospheric activity (EA/RS type), with a period of 0.4629 days, brightness range of 14.35-14.90 mag(CV). It exhibits a long term mean magnitude change, probably caused by a long period spot cycle (light curve, phase diagram).
Light Curve
Light curve by LINEAR and Catalina Sky Survey (Stefan Huemmerich and Klaus Bernhard)
Light curve by LINEAR and Catalina Sky Survey (Stefan Huemmerich and Klaus Bernhard)
Observations by MISAO Project
| Date | Mag | Filter | Observer |
|---|---|---|---|
| 2000 Dec. 1.79238 | 14.32 | C | Nobuo Ohkura |
| 2000 Dec. 1.79424 | 14.22 | C | Nobuo Ohkura |
| 2001 Jan. 21.64113 | 14.30 | C | Nobuo Ohkura |
| 2001 Jan. 21.64299 | 14.16 | C | Nobuo Ohkura |
| 2001 Jan. 21.64484 | 14.28 | C | Nobuo Ohkura |
| 2002 Jan. 5.68604 | 14.15 | C | Nobuo Ohkura |
| 2002 Jan. 5.68801 | 14.11 | C | Nobuo Ohkura |
| 2002 Jan. 5.68998 | 14.26 | C | Nobuo Ohkura |
| 2007 Mar. 11.51755 | 14.20 | C | Youichirou Nakashima |
| 2007 Mar. 11.52036 | 14.20 | C | Youichirou Nakashima |
| 2007 Mar. 12.61355 | 14.23 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Mar. 12.61639 | 14.27 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Mar. 13.55787 | 14.49 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Mar. 13.56071 | 14.55 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Mar. 14.55152 | 14.22 | C | Youichirou Nakashima |
| 2007 Mar. 14.55435 | 14.23 | C | Youichirou Nakashima |
| 2007 Mar. 17.54189 | 14.19 | C | Youichirou Nakashima |
| 2007 Mar. 17.54472 | 14.22 | C | Youichirou Nakashima |
| 2007 Mar. 18.56800 | 14.13 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Mar. 18.57083 | 14.15 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Mar. 20.59226 | 14.18 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Mar. 20.59509 | 14.21 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Mar. 21.54229 | 14.15 | C | Youichirou Nakashima |
| 2007 Mar. 21.54513 | 14.15 | C | Youichirou Nakashima |
| 2007 Mar. 23.54397 | 14.25 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Mar. 23.54681 | 14.30 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Mar. 30.54787 | 14.08 | C | Youichirou Nakashima |
| 2007 Apr. 4.48990 | 14.17 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Apr. 4.49273 | 14.23 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Apr. 5.44109 | 14.18 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Apr. 5.44391 | 14.20 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Apr. 6.45792 | 14.17 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Apr. 6.46074 | 14.19 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Apr. 9.50979 | 14.16 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Apr. 9.51275 | 14.21 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Apr. 10.50838 | 14.14 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Apr. 10.51051 | 14.23 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Apr. 11.44963 | 14.17 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2007 Apr. 11.45174 | 14.10 | C | Nobuo Ohkura and Youichirou Nakashima |
| 2009 Jan. 20.50406 | 15.9 | V | Tsutomu Fujiwara |
| 2009 June 1.49240 | 15.7 | V | Tsutomu Fujiwara |
| 2009 June 1.50331 | 14.8 | Rc | Tsutomu Fujiwara |
| 2009 June 6.47725 | 15.4 | V | Tsutomu Fujiwara |
| 2009 June 6.48639 | 14.8 | Rc | Tsutomu Fujiwara |