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[vsnet-newvar 1824] GSC 6248:1255 Variability
- Date: Sat, 8 Feb 2003 13:01:03 EST
- To: vsnet-campaign-unknown@ooruri.kusastro.kyoto-u.ac.jp,vsnet-newvar@ooruri.kusastro.kyoto-u.ac.jp, aavso@aavso.org
- From: DWest61506@aol.com
- Subject: [vsnet-newvar 1824] GSC 6248:1255 Variability
- Delivered-To: vsnet-newvar-archive@ooruri.kusastro.kyoto-u.ac.jp
- Delivered-To: vsnet-newvar@ooruri.kusastro.kyoto-u.ac.jp
- Sender: owner-vsnet-newvar@ooruri.kusastro.kyoto-u.ac.jp
The star GSC 6248:1255 (in the field of V2540 Oph) appears to be variable. I used GSC 6248:1364 (V=11.05, Rc=10.66) and SAO 160704 (V=9.97, Rc=9.72) as comparison stars. For reference, the Tycho 2 position (J2000) is 17 37 22.694 -16 21 11.09 and photometry Bt = 13.160 and Vt = 11.422. This is a red star (M type). I did not find the star listed in the GCVS. My CCD measurements are:
20020213.584 11.76V WJD
20020819.115 11.35V WJD
20020819.101 9.27Rc WJD
20020907.091 11.21V WJD
Assume an error of +/- 0.1 magnitude to account for lack of color correction.
Regards,
Doug West
http://hometown.aol.com/dwest61506/index.html
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