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Possible Nova in Scorpius

26 Apr 2010, 17:56 UTC
Possible Nova in Scorpius
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CBET circular No. 2262, issued on April 26, 2010, announces the discovery by K. Nishiyama & F. Kabashima (Japan) of another possible nova (mag 8.6) on two 40-s unfiltered CCD frames (limiting magnitude 13.1) taken around Apr. 25.788 UT using a 105-mm f/4 camera lens (+ SBIG STL6303E camera). The same CBET reports indipendent discovery by H. Nishimura & T. Kojima.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 April 26.4, 2010 we can confirm the presence of an optical counterpart with unfiltered CCD magnitude about 8.2 (UCAC2 Catalogue reference stars) at coordinates:R.A. = 16 55 13.17, Decl.= -38 03 47.8(equinox 2000.0; UCAC2 catalogue reference stars).Our confirmation image:Please click here for a bigger version:http://bit.ly/a1nmKjThis is an animation showing a comparison between our image and thearchive DSS plate (R Filter - 1995):Please click here for a bigger version:http://bit.ly/axetYAby Ernesto Guido and Giovanni Sostero

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