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* Profile

MisV1023 = V1462 Cyg

R.A.19h56m53s.59
Decl.+36o48'06".3(2000.0)
Mag.10.5-11.5C
TypeSR:
= IRAS 19550+3639  R.A.=19 56 53.41  Decl.=+36 48 04.8  (21 x 4", p.a.
  =68)  flux(12)=1.94  flux(25)=1.22  flux(60)=<0.79  flux(100)=<12.62
    7% variable
= 2MASS 195653.668 +364807.56 (2000.0)  5.957  0.000  0.000

Digitized Sky Survey GIF image (15 x 15 arcmin)

SIMBAD Query

AAVSO VSX Database

ASAS-3 Light Curve

NSVS Light Curve (NSVS 8451048)

* Discovery Information

Seiichi Yoshida, MISAO Project; Nobuo Ohkura, Okayama, Japan; and Ken-ichi Kadota, Ageo, Saitama, Japan, discovered a new variable star MisV1023.

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.

NSV 12608 is 3.1 arcmin from MisV1023. No star brighter than 14.8 mag was detected at the position of NSV 12608. However, Dr. Brian Skiff and John Greaves researched the chart in Nassau & Cameron, ApJ 119, 175 (1954) and revealed that MisV1023 is a new variable star.

The identification with the 2MASS data is by Taichi Kato.

* Special Notes

In 2000, when the position of V1462 Cyg was inaccurate, we the MISAO Project discovered two new variable stars around it. One of them is identified with NSV 12600. We thought V1462 Cyg ans NSV 12600 are the same star (IBVS 4814), and announced another star as a new variable star MisV1023.

In 2003, the GCVS editors revised the position of V1462 Cyg (2003AstL...29..468S). The revised position is different from NSV 12600, but same as MisV1023. Therefore, it was revealed that MisV1023 was not a new variable.

* Light Curve

    10.5  +--------------------------------------------------------+
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    11.6  +--------------------------------------------------------+
       2451276                                                  2451784
     1999 Apr. 7                                              2000 Aug. 27

* Observations by MISAO Project

DateMagFilterObserver
1999 Apr. 30.6926011.1CKen-ichi Kadota
1999 Apr. 30.6930211.1CKen-ichi Kadota
1999 July 7.6786111.4CKen-ichi Kadota
1999 July 7.6790411.2CKen-ichi Kadota
1999 Aug. 1.6118211.5CKen-ichi Kadota
1999 Aug. 1.6122711.5CKen-ichi Kadota
1999 Aug. 3.6560211.4CKen-ichi Kadota
1999 Aug. 3.6565711.5CKen-ichi Kadota
1999 Aug. 31.6306510.9CKen-ichi Kadota
1999 Aug. 31.6310810.9CKen-ichi Kadota
2000 Aug. 4.5130010.6CNobuo Ohkura
2000 Aug. 4.5148610.5CNobuo Ohkura

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