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Cataclysmic Variable in Pegasus

9 May 2010, 18:41 UTC
Cataclysmic Variable in Pegasus
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CBET circulars No. 2273 & 2275, issued on May 08, 2010, announces the discovery by Dae-Am Yi (Korea) of an apparent new object (mag about 10.8) on two images taken on May 6.77 with a Canon 5D digital camera (+ 93-mm camera lens). CBET 2275 reports independent discovery of the outburst of this variable by Shizuo Kaneko.We performed some follow-up of this object remotely through a 0.25-m, f/3,4 reflector + CCD, from GRAS Observatory (near Mayhill, NM).On our images taken on May 09.4, 2010 we can confirm the presence of an optical counterpart with unfiltered CCD magnitude about 8.5 (UCAC2 Catalogue reference stars) at coordinates:R.A. = 21 38 06.57, Decl.= +26 19 58.2(equinox 2000.0; UCAC2 catalogue reference stars).Our confirmation image:Please click here for a bigger version:http://bit.ly/axXnjFThis is an animation showing a comparison between our image and the archive DSS plate (R Filter - 1991). The archive plates show a close pair of objects at the location of the outbursting variable (GSC 2197:886):Please click here for a bigger version:http://bit.ly/9jT4ByBased upon an examination of the POSS-I and POSS-II plates by Arne Henden (AAVSO), it is possible that the double is composed of two unassociated stars, one with a high proper motion.Spectrum obtained ...

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