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[vsnet-newvar 557] New Haseda variable (HadV67)

New Haseda variable (HadV67)

   Katsumi Haseda (Aichi, Japan) reports the discovery of a new variable
star (HadV67).  The identity with V648 Oph needs to be checked.

HadV67
= USNO0975.12622820 183817.583 +081321.84 (2000.0) 13.4 16.5
= IRAS18358+0810 183553.2 +081039 (1950.0)
    F12=0.76  F25=0.33L F60=0.40L F100=3.63L
    VAR=-1 LRS=-1
 possibly I: oxygen-rich non-variable star without circumstellar shell
 or 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
= 183817.3 +081320 (2000.0) IRAS18358+0810 0.732 0.331L 0.400L 3.480L -1%
= 183817.3 +081320 (2000.0) SSC18358+0810 0.732 0.331L 0.400L 3.480L

  HadV67  M  11.2-(13.9p

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
HadV67         19970410.781  <139p  Had.VSOLJ
HadV67         19980204.818  <139p  Had.VSOLJ
HadV67         19980302.806  <139p  Had.VSOLJ
HadV67         19980307.795  <139p  Had.VSOLJ
HadV67         19980329.782  <139p  Had.VSOLJ
HadV67         19980403.775  <139p  Had.VSOLJ
HadV67         19980427.746  133p  Had.VSOLJ
HadV67         19980504.746  135p  Had.VSOLJ
HadV67         19980522.697  128p  Had.VSOLJ
HadV67         19980629.642  <139p  Had.VSOLJ
HadV67         19980717.539  <139p  Had.VSOLJ
HadV67         19981107.420  118p  Had.VSOLJ
HadV67         19990213.826  <139p  Had.VSOLJ
HadV67         19990316.797  <139  Had.VSOLJ
HadV67         20000209.822  <139p  Had.VSOLJ
HadV67         20000307.801  133p  Had.VSOLJ
HadV67         20000503.708  <139p  Had.VSOLJ
HadV67         20000721.572  <139p  Had.VSOLJ
HadV67         20000902.551  112p  Had.VSOLJ

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

Relayed from Katsumi Haseda <haseda@mxs.mesh.ne.jp>

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