[Message Prev][Message Next][Thread Prev][Thread Next][Message Index][Thread Index]

[vsnet-newvar 1172] New Takamizawa variable (TmzV857)

New Takamizawa variable (TmzV857)

   Kesao Takamizawa (Nagano, Japan) reports the discovery of a new variable
star (TmzV857).

TmzV857
= GSC3690.2539 021615.52 +544837.1 (2000.0) 12.57 1
= USNO1425.03226470 021615.601 +544835.66 (2000.0) 11.2 14.0 *
= IRAS02127+5434 021247.9 +543433 (1950.0)
     F12=0.76  F25=0.36  F60=0.40L F100=1.44L
     VAR=92 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
= 021613.8 +544827 (2000.0) IRAS02127+5434 0.775 0.384 0.400L 1.401L 92%
= 021613.8 +544827 (2000.0) SSC02127+5434 0.775 0.384 0.400L 1.401L

  Takamizawa's comment:

  The star may be a semiregular variable with a range of 11.9-12.7p.
  (TmzV857 is a component of a close pair; GSC3690.2583 star is present in
  the SSE direction).

Photographic magnitude estimates by VSOLJ members

object         YYYYMMDD(UT)   mag  code
TmzV857        19950127.424  120p  Tmz.VSOLJ
TmzV857        19960922.666  122p  Tmz.VSOLJ
TmzV857        19970613.728  131p  Tmz.VSOLJ
TmzV857        19980116.413  121p  Tmz.VSOLJ
TmzV857        19980629.701  127p  Tmz.VSOLJ
TmzV857        19991128.448  126p  Tmz.VSOLJ
TmzV857        20000902.678  119p  Tmz.VSOLJ
TmzV857        20011023.605  122p  Tmz.VSOLJ

Observer's code:
  Tmz: K.Takamizawa (Saku-machi,Nagano,Japan)
       SASS (Saku All Sky Survey)
       Inst.: 10cmR F4 twin patrol cameras and 25cm F2.8
       Baker-Schmidt camera T-Max400 120
       Comparison stars mag.:GSC

Relayed from Kesao Takamizawa <k-takamizawa@nifty.ne.jp>

VSNET Home Page

Return to Daisaku Nogami

vsnet-adm@kusastro.kyoto-u.ac.jp