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[vsnet-obs 18871] New Takamizawa variable (TmzV163)

New Takamizawa variable (TmzV163)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV163).

TmzV163
Takamizawa's position: 03h43m53s.1 +67o40'51"
Two possible USNO counterparts, the first being closer to the nominal
position, but the second (fainter) one closely matches the IRAS coordinates.
(= USNO1575.01815893 034352.982 +674052.64 (2000.0) 14.6 16.3 ?)
(= USNO1575.01815851 034352.508 +674033.11 (2000.0) 16.6 20.1 ?)
= IRAS03390+6731 033905.5 +673104 (1950.0)
    F12=2.75  F25=2.09  F60=0.40L F100=12.02L
    VAR=99 LRS=-1
 possibly IIIa: variable star with more evolved O-rich c.s. shell
= 034352.5 +674033 (2000.0) IRAS03390+6731 2.824 2.180 0.400L 12.310L 99%
= 034352.5 +674033 (2000.0) SSC03390+6731 2.824 2.180 0.400L 12.310L

  Takamizawa's comment:

  The star may be a Mira-type variable with a range of 12.7-<15.1p.

Photographic magnitude estimates by VSOLJ members

object         YYMMDD(UT)   mag  code
TmzV163        950127.497  146p  Tmz.VSOLJ
TmzV163        960111.431  127p  Tmz.VSOLJ
TmzV163        970714.711  <145p  Tmz.VSOLJ
TmzV163        970802.715  <145p  Tmz.VSOLJ
TmzV163        971101.613  <151p  Tmz.VSOLJ
TmzV163        971123.522  <145p  Tmz.VSOLJ
TmzV163        971221.449  <145p  Tmz.VSOLJ
TmzV163        980116.428  <145p  Tmz.VSOLJ
TmzV163        980820.699  <145p  Tmz.VSOLJ
TmzV163        980823.681  <145p  Tmz.VSOLJ
TmzV163        990109.489  <145p  Tmz.VSOLJ

Observer's code:
  Tmz: K.Takamizawa (Saku-machi,Nagano,Japan)
       Inst.: 10cmR F4 twin patrol cameras  T-Max400 120
       Comparison stars mag.:GSC

Relayed from Kesao Takamizawa <GHA07243@nifty.ne.jp>

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