[vsnet-newvar 1525] New Haseda variable (HadV108)

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

New Haseda variable (HadV108)

   Katsumi Haseda (Aichi, Japan) reports the discovery of a new variable
star (HadV108).

HadV108
= USNO0675.21335962 194304.866 -210053.93 (2000.0) 11.7 14.5
= 2MASS 194304.855 -210053.90 (2000.0)  6.332  5.443  4.986
= IRAS19401-2108 194008.4 -210804 (1950.0)
    F12=1.32  F25=0.52  F60=0.40L F100=1.00L
    VAR=41 LRS=-1
 possibly II: variable star with 'young' O-rich 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
= 194305.2 -210052 (2000.0) FSC19401-2108 1.267 0.520 0.185L 0.606L
= 194305.3 -210054 (2000.0) IRAS19401-2108 1.313 0.526 0.400L 1.000L 41%
= 194305.3 -210054 (2000.0) SSC19401-2108 1.313 0.526 0.400L 1.000L

  HadV108  M 11.7-(14.5p

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
HadV108        19980330.798  <141p  Had.VSOLJ
HadV108        19990414.774  117p  Had.VSOLJ
HadV108        19990904.533  <145  Had.VSOLJ
HadV108        20000413.787  <132p  Had.VSOLJ
HadV108        20000428.756  <145p  Had.VSOLJ
HadV108        20010226.824  <143p  Had.VSOLJ
HadV108        20010422.775  <145p  Had.VSOLJ
HadV108        20010626.640  143p  Had.VSOLJ
HadV108        20010922.480  141p  Had.VSOLJ
HadV108        20020618.653  128p  Had.VSOLJ
HadV108        20020731.560  <143p  Had.VSOLJ
HadV108        20020813.568  144p  Had.VSOLJ

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

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