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MisV1262ProfileMisV1262
= IRAS 22221+5430 22h24m06s.2 +54o45'29" Ellipse:18x8" P.A.:92 Flu x(12):0.3635 Flux(25):0.1780 Flux(60):<1.352 Flux(100):<11.88 Va r:4% = MSX5C G102.6786-02.2130 22h24m06s.46 +54o45'31".7 InScanError:2.9" CrossScanError:2.4" Flux(A):0.23806 = GSC2.2 N0122113238856 Fmag 14.8 (red) Jmag 17.8 (blue) Digitized Sky Survey GIF image (15 x 15 arcmin)
NSVS Light Curve (NSVS 3442991) Discovery InformationSeiichi Yoshida, MISAO Project; Nobuo Ohkura, Okayama, Japan; and Ken-ichi Kadota, MISAO Project, discovered a new variable star MisV1262. 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. The identification is researched by Taichi Kato (Kyoto University), Seiichi Yoshida, and other contributors. Special NotesIt was announced as a possible semi-regular variable with a small amplitude at the discovery. But further observations revealed it is a Mira type variable with large amplitude. Unexpectedly, V-band observations caught a 14.9 mag star at the position of MisV1262, when it faded down to 14.1 mag by unfiltered CCD observations. It was almost constant in V-band. Investigating DSS images and USNO-B1.0 catalog revealed that there is a complex of three stars within 15 arcsec at the position of MisV1262, and a nearby star becomes brighter than MisV1262 in B-band and V-band. A 14.9 mag star in V-band images must be the nearby star. The NSVS light curve also shows a rough variation of this star with a range of 12.8 - 14.1 mag. However, the NSVS data must be blending of the complex, and must not show the total variation. Research and Publication
Light Curve12.4 +--------------------------------------------------------+ | * * | | * | | | | * | | * | | | | * | | * | | * | | | | * | | | | | | * | | | | * | | * | | * | | * | | * | | * | 14.6 +--------------------------------------------------------+ 2451730 2452969 2000 July 4 2003 Nov. 25 Observations by MISAO Project
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