[Aavso-photometry] New variable in Her

[Tonny Vanmunster]

Dear all,

IAUC 8601 (Sep 16, 2005) reports the discovery of a new variable in Her,
close to UGC 10990 and to radio source IVS 1746+340 :

VARIABLE IN HERCULES
     Further to IAUC 8598, T. Puckett and V. Reddy report the
discovery of a variable object (mag 16.2) on an unfiltered CCD
frame taken with the 0.60-m automated supernova patrol telescope on
Sept. 6.08 UT, the variable being located at R.A. = 17h48m05s.81,
Decl. = +34o04'01".2 (equinox 2000.0), which is near UGC 10990, and
it was also visible at mag 16.6 on Puckett's images from Sept. 7.09.
The object is visible on Palomar Sky Survey plates taken on 1992
May 5 (blue mag 19.7) and 1993 Aug. 12 (red mag 17.7).  Nothing is
visible at this location on images taken by Puckett on 2000 Apr. 18,
26, May 12, June 9, 30, 2002 Mar. 8, Apr. 6, 16, 2003 Apr. 6, 14,
and 2005 Feb. 26 (limiting mag about 20.0); however, the variable
was visible at the following magnitudes on other images taken by
Puckett:  2002 Feb. 25, 18.1; 26, 18.3; Mar. 24, 18.7; Apr. 1, 17.8;
2004 July 10, 18.2; 2005 Apr. 5, 18.0; 13, 17.8; 17, 17.4; 20, 17.1;
25, 17.5; May 8, 17.0; 14, 16.8; 19, 17.1; 26, 17.5; 29, 18.0; June
6, 17.5; 23, 17.7.  The variable object's location is very near
that of the radio source IVS 1746+340 (cf. Beasley et al. 2002,
Ap.J. Suppl. 141, 31).

Since nothing is known about the type of variability, this might be an
interesting target for both time-resolved photometry and long-term
monitoring by CCD observers. 

Best regards,
Tonny


Tonny Vanmunster
CBA Belgium Observatory
http://www.cbabelgium.com 
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PERANSO : The Final Frontier of Period Analysis Software
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