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

[vsnet-newvar 2016] New Bernhard variable (Brh V134)



Dear colleagues!
 
I would like to send you observations of a new variable star
(Brh V134), which I have discovered in a systematic CCD-based
search for new variables.
In each observing run typically 600 images are taken of several survey
fields.
The frames are processed automatically.

Instruments:
CCD-camera: Starlight Xpress SX (unfiltered)
Telescope: Celestron-8 (20 cm Schmidt-Cassegrain)
 
New variable star:
new Brh V134   14 36 28.4 -05 36 21.5 (J2000) 12.6-13.1 (CCD)
 
comments:
Brh V134: GSC 4992 663
The comparison star is GSC 4992 800 (12.29 mag),
which has been checked for constant brightness.

John Greaves has kindly sent a comment:

There is data available here :-

http://vsnet.astrouw.edu.pl/cgi-asas/asas_lc/143628-0536.4

The period appears to be quite short, and the object fairly red 
(somewhere between K5 and K9 using 2MASS J-Ks values).

USNO B1.0 gives a proper motion of -132 mas/y in RA, though only 10 
mas/y in dec, which is not inappreciable (-13.2 arcsecs per century). 
This may well mean it is not too distant, and therefore not 
intrinsically bright.

Though there is only one 'dip' in your data, the ostensible <1 day 
periodicity, its apparent regular repeatability from the ASAS3 
lightcurve, and the spectral class, suggest a fairly red EW star 
(extinction/reddening should not be a problem in Virgo).


object      YYMMDD(UT)      mag(CCD)   code
Brh V134      030616.8583     12.67    Brh.BAV
Brh V134      030616.8652     12.78    Brh.BAV
Brh V134      030616.8722     12.69    Brh.BAV
Brh V134      030616.8791     12.78    Brh.BAV
Brh V134      030616.8861     12.90    Brh.BAV
Brh V134      030616.8930     13.01    Brh.BAV
Brh V134      030616.9000     12.93    Brh.BAV
Brh V134      030616.9069     12.96    Brh.BAV
Brh V134      030616.9138     13.10    Brh.BAV
Brh V134      030616.9208     12.86    Brh.BAV
Brh V134      030616.9277     12.81    Brh.BAV
Brh V134      030616.9347     12.63    Brh.BAV
Brh V134      030616.9416     12.64    Brh.BAV
Brh V134      030616.9486     12.67    Brh.BAV
Brh V134      030616.9625     12.66    Brh.BAV
Brh V134      030616.9694     12.66    Brh.BAV

Regards,
 
Klaus Bernhard
 
Klaus Bernhard
Kafkaweg 5
A-4030 LINZ
AUSTRIA
 
kl.bernhard@aon.at
http://mitglied.lycos.de/klausbernhard/








Return to Home Page

Return to the Powerful Daisaku Nogami

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

Powered by ooruri technology