MISAO Project

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* Profile

MisV1105 = V2421 Cyg

= GSC 3159-01247  20h14m38s.55 +41o56'14".6  Error:0.2"  Mag:13.93  Ma
  gError:0.38  Band:1  Class:3  Plate:003S  Flag:F  Epoch:03 SEP 1983
= USNO-A2.0 1275.13699980  20h14m38s.575 +41o56'14".67  Mag(R):14.4  M

Digitized Sky Survey GIF image (15 x 15 arcmin)


AAVSO VSX Database

ASAS-3 Light Curve

NSVS Light Curve (NSVS 5721855)

* Discovery Information

Seiichi Yoshida, MISAO Project; Nobuo Ohkura, Okayama, Japan; and Ken-ichi Kadota, Ageo, Saitama, Japan, discovered a new variable star MisV1105.

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 comparing with images taken by Ken-ichi Kadota, 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

Kazuhiro Nakajima's observations revealed it is a beta Lyr-type (EB) eclipsing variable with unfiltered CCD variations of 13.79 mag at maximum, 15.03 mag at primary minimum, 14.20 mag at secondary minimum, and period of 0.6331 days (IBVS 5600).

* Research and Publication

* Light Curve

MisV1105 is a beta Lyr-type eclipsing variable
Nakajima, K.; Yoshida, S.; Ohkura, N.; Kadota, K.

* Observations by MISAO Project

1999 Aug. 3.6897113.4CKen-ichi Kadota
1999 Aug. 3.6901513.6CKen-ichi Kadota
1999 Nov. 21.4215514.1CKen-ichi Kadota
1999 Nov. 21.4220014.4CKen-ichi Kadota
2000 Sept. 7.4713113.7CNobuo Ohkura
2000 Sept. 7.4731713.7CNobuo Ohkura
2000 Sept. 26.4329113.7CNobuo Ohkura
2000 Sept. 26.4347613.6CNobuo Ohkura

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