[vsnet-newvar 1526] Confirmation of large-amplitude variability of NSV12305 by Haseda

[Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>]

Confirmation of large-amplitude variability of NSV12305 by Haseda

   Katsumi Haseda (Aichi, Japan) reports the detection of large-amplitude
variation of NSV 12305.  The object is confirmed to be a Mira-type variable.
The object is bright now.

NSV12305
= GSC6311.457 194230.92 -220612.2 (2000.0) 14.64 0
= USNO0675.21317665 194231.005 -220611.98 (2000.0) 12.3 16.3
= 2MASS 194230.984 -220612.06 (2000.0)  5.905  0.000  0.000
= IRAS19395-2213 193932.8 -221321 (1950.0)
    F12=2.29  F25=0.69  F60=0.40L F100=1.00L
    VAR= 3 LRS=-1
 possibly I: oxygen-rich non-variable star without circumstellar shell
 or VII: variable star with more evolved C-rich circumstellar shell
 or VIa: non-variable star with relatively cold dust at large
      distance, may be carbon-rich
= 194231.0 -220613 (2000.0) IRAS19395-2213 2.209 0.710 0.400L 1.000L 3%
= 194231.0 -220613 (2000.0) SSC19395-2213 2.209 0.710 0.400L 1.000L
= 194229.7 -220613 (2000.0) FSC19395-2213 2.264 0.815 0.340L 1.115L

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
NSV12305       19990414.774  <147p  Had.VSOLJ
NSV12305       20020813.568  123p  Had.VSOLJ

Observer's code:
  Had: K. Haseda (Aichi, Japan)
       Instruments: 10cm F4.0 twin patrol camera +T-Max400(120)

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