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[vsnet-chat 6328] New variable star in the R Normae field



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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