[vsnet-obs 16533] New Haseda variable star (HadV01)

[Taichi Kato <tkato>]

New Haseda variable star (HadV01)

  Katsumi Haseda (Aichi Japan) reports (via Takamizawa) her discovery of
a new variable star (HadV01).

HadV01 = USNO0675.14316454 174643.910 -180241.42 (2000.0) 13.1 16.7
       = IRAS17437-1801 174347.9 -180139 (1950.0)
         F12=4.36  F25=2.29  F60=0.63L F100=7.58L
         VAR=88 LRS=-1
       possibly IIIa: variable star with more evolved O-rich c.s. shell
       or VII: variable star with more evolved C-rich circumstellar shell
       = 174643.2 -180243 (2000.0) IRAS17437-1801 4.383 2.336 0.633L 7.632L 88%
       = 174643.2 -180243 (2000.0) SSC17437-1801 4.383 2.336 0.633L 7.632L

   The precise position by K. & R. Kushida is 17h46m44s.04 Decl.=-18o02'42".5
(J2000.0).  The red color in USNO suggests a previously unknown Mira star.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
HadV01         960525.667  <130p  Had.VSOLJ
HadV01         970309.813  <145p  Had.VSOLJ
HadV01         970517.724  <145p  Had.VSOLJ
HadV01         970606.665  <140p  Had.VSOLJ
HadV01         980228.825  121p  Had.VSOLJ
HadV01         980302.825  125p  Had.VSOLJ
HadV01         980307.799  120p  Had.VSOLJ
HadV01         980402.798  121p  Had.VSOLJ
HadV01         980425.712  129p  Had.VSOLJ
HadV01         980429.715  128p  Had.VSOLJ
HadV01         980522.681  <130p  Had.VSOLJ
HadV01         980629.668  <130p  Had.VSOLJ
HadV01         981009.426  <130p  Had.VSOLJ

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