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[vsnet-chat 6328] New variable star in the R Normae field
- Date: Mon, 12 May 2003 00:42:13 -0300
- To: <vsnet-chat@kusastro.kyoto-u.ac.jp>,<vsnet-gcvs@ooruri.kusastro.kyoto-u.ac.jp>,<vsnet-newvar@ooruri.kusastro.kyoto-u.ac.jp>
- From: "Sebastian Otero" <varsao@fullzero.com.ar>
- Subject: [vsnet-chat 6328] New variable star in the R Normae field
- Cc: "surastronomico" <surastronomico@fullzero.com.ar>,"paula Pietranera" <ppietranera@hotmail.com>,"Lelia" <leliafo@yahoo.com.ar>,"Gabriel Giust" <gag@sinectis.com.ar>,"Federico Claus" <nclaus@infovia.com.ar>,"Cecilia" <cecimacros@yahoo.com.ar>, "BED" <enzodb@fullzero.com.ar>,"Astrid Behrens" <astridbeh@arnet.com.ar>,"Sebastian Otero" <varsao@fullzero.com.ar>
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New variable star found in ASAS-3 data
According to ASAS-3 data, the red giant HD 138706 is a semiregular variable
star with a 30 days period.
Range is V= 8.18 - 8.50.
It had been plotted as the 834 comparison star (Tycho-2 value) in my R
Normae chart which has already been corrected.
This chart can be used to observe the new variable:
http://ar.geocities.com/varsao/Carta_R_Nor_bin.htm
Tycho-2 position is:
15h 35m 51.68s -50º 17' 21.0" (2000.0)
It is an M3III type star (SIMBAD) with a B-V of 1.6 (Tycho-2).
Some lightcurves at:
http://ar.geocities.com/varsao/HD_138706.htm
Regards,
Sebastian.
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