[IAUC] CBET 2062: 20091202 : M31N 2009-11a

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                                                  Electronic Telegram No. 2062
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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M31N 2009-11a
     K. Hornoch, Astronomical Institute, Ondrejov, Czech Republic; and O.
Pejcha, Department of Astronomy, Ohio State University, report on their
low-resolution optical spectroscopy (range 380-720 nm, resolution 0.7 nm)
and optical photometry of M31N 2009-11a (cf. CBET 2003).  Spectra were
obtained using the Boller & Chivens CCD Spectrograph on the 2.4-m Hiltner
telescope at MDM Observatory.  The spectrum of M31N 2009-11a obtained by
Pejcha on Nov. 25.32 UT (21.8 days after its first optical detection made
by Nishiyama and Kabashima) shows H-alpha, H-beta, H-gamma, and Fe II
emission lines, confirming this object as a "Fe II"-class nova.  The HWZI
of H-alpha was about 1500 km/s.  Magnitude measurements were obtained from
images taken with RETROCAM on the 2.4-m Hiltner telescope (+ Sloan filters)
and with the 0.65-m telescope (+ G2CCD-3200) at Ondrejov.  Magnitudes for
2009-11a:  Nov. 4.963, R = 17.6 +/- 0.1 (Hornoch, 0.65-m telescope); 5.721,
R = 17.74 +/- 0.05 (Hornoch and M. Wolf, 0.65-m telescope); 13.064, R =
18.4 +/- 0.25 (Hornoch); 25.303, r' = 19.71 +/- 0.08 (Pejcha and Hornoch,
2.4-m telescope); 25.306, g' = 20.35 +/- 0.07 (Pejcha and Hornoch, 2.4-m
telescope); 27.034, R = 19.4 +/- 0.3 (Hornoch and Wolf).  Hornoch also
reports position end figures 04s.78, 07".6 for M31N 2009-11a.


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                         (C) Copyright 2009 CBAT
2009 December 2                  (CBET 2062)              Daniel W. E. Green