[vsnet-alert 13124] MisV1444 - possible new peculiar variable?

[Seiichi Yoshida]

Dear colleagues,

I discovered an interesting new variable star from Youichirou
Nakashima's images, in the course of the MISAO Project.

It may be a new peculiar variable, I guess. Observations and comments
are welcome!

MisV1444
  R.A.   18h46m37s.47
  Decl.  +22o48'22".0  (2000.0)
  Mag.   13.0-<16.0C
  Type   ?

  http://www.aerith.net/misao/data/MisV/MisV1444.gif

  Discoverers:
    Seiichi Yoshida, Yokohama City, Kanagawa, Japan
    Youichirou Nakashima, Setouchi City, Okayama, Japan

It also looks bright on 2MASS images. But I guess it is not an
ordinary red variable.

On the Digitized Sky Survey 2 (POSS2/UKSTU) images, it is not so
bright on infrared plate. It looks brighter on the blue plate than
infrared plate.

Here are the past observations in the course of the MISAO Project.

MisV1444 20010607.63642 152C Mis
MisV1444 20010704.55036 <159C Mis
MisV1444 20010704.55221 <160C Mis
MisV1444 20010812.51234 <157C Mis
MisV1444 20010812.51419 <158C Mis
MisV1444 20080531.61119 <149C Mis
MisV1444 20080531.61323 <151C Mis
MisV1444 20080531.61527 <149C Mis
MisV1444 20080707.51243 <153C Mis
MisV1444 20080707.51446 <155C Mis
MisV1444 20080707.51649 <151C Mis
MisV1444 20080707.51853 <151C Mis
MisV1444 20080727.60396 155C Mis
MisV1444 20080727.60600 156C Mis
MisV1444 20080727.60803 154C Mis
MisV1444 20080810.51223 151C Mis
MisV1444 20080810.51427 150C Mis
MisV1444 20080810.51631 150C Mis
MisV1444 20110405.70698 132C Mis
MisV1444 20110405.70832 130C Mis
MisV1444 20110405.70965 131C Mis
MisV1444 20110405.71100 132C Mis

2001 June  7, 2001 July  4, 2001 Aug. 12
  Nobuo Ohkura
  500-mm camera lens + SBIG ST-8

2008 May  31
  Youichirou Nakashima
  0.10-m f/6.4 refractor + f/4.8 reducer lens + SBIG ST-8

2008 July  7
  Youichirou Nakashima
  0.10-m f/6.4 refractor + f/4.8 reducer lens + SBIG ST-8

2008 July 27, 2008 Aug. 10
  Youichirou Nakashima
  7.6-cm f/6.6 refractor + SBIG ST-8

2011 Apr.  5
  Youichirou Nakashima
  Canon 500-mm f/4.5 camera lens + SBIG ST-8

Best regards,

--
Seiichi Yoshida
comet at aerith.net
http://www.aerith.net/