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[vsnet-obs 20273] New Haseda variable (HadV18)



New Haseda variable (HadV18)

   Katsumi Haseda (Aichi, Japan) reports the discovery of a new variable
star (HadV18).

HadV18
= USNO1125.18061726 210511.064 +265413.93 (2000.0) 11.0 14.3
= IRAS21030+2642 210300.6 +264211 (1950.0)
    F12=2.75  F25=1.10  F60=0.40L F100=4.78L
    VAR= 0 LRS=-1
 possibly II: variable star with 'young' O-rich circumstellar shell
 or VII: variable star with more evolved C-rich circumstellar shell
= 210510.8 +265412 (2000.0) IRAS21030+2642 2.863 1.097 0.400L 4.670L 0%
= 210510.8 +265412 (2000.0) SSC21030+2642 2.863 1.097 0.400L 4.670L
= 210510.8 +265415 (2000.0) FSC21030+2642 3.011 1.047 0.203L 2.168L

  HadV18    M:  range 11.0-(13.2p

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
HadV18         981111.493  <132p  Had.VSOLJ
HadV18         990322.818  110p  Had.VSOLJ
HadV18         990414.754  112p  Had.VSOLJ
HadV18         990420.787  113p  Had.VSOLJ
HadV18         990425.772  117p  Had.VSOLJ

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

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