[vsnet-chat 7358] MisV1396 - remarkably blue star with a rare variation

[Seiichi Yoshida]

Dear colleagues,

One of the recent new variable stars discovered in the course of the
MISAO Project, MisV1396, is remarkably blue.

MisV1396
  R.A.  01h07m22s.96
  Decl. +57o08'01".8  (2000.0)
  Mag.  11.29-11.72C
  Type  E:
= GSC 3677-00180  01h07m22s.94 +57o08'01".8  Error:0.3"  Mag:10.86  MagError:0.41  Band:1  Class:0  Plate:01W2  Flag:T  Epoch:07 NOV 1983
= GSC 3677-00180  01h07m22s.97 +57o08'01".7  Error:0.2"  Mag:11.40  MagError:0.40  Band:1  Class:0  Plate:036D  Flag:T  Epoch:11 OCT 1983
= USNO-A2.0 1425.01555531  01h07m22s.970 +57o08'01".94  Mag(R):12.2  Mag(B):11.8

http://www.aerith.net/misao/data/misv.cgi?1396

The RGB composite image from DSS I, R and Bj images is available at
the web page above, which shows MisV1396 is remarkably blue. The
USNO-A2.0 color is B-R = -0.4 mag.

MisV1396 faded only once by the MISAO Project observations. It is
almost constant the other days.

The following NSVS light curve shows MisV1396 is almost constant, or
maybe it shows a small irregular variation.

http://skydot.lanl.gov/nsvs/star.php?num=1728453&mask=18708

Is this star something special?

Best regards,

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