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IAUC 8927: C/2008 E3; N Cyg 2008

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IAUC number

                                                  Circular No. 8927
Central Bureau for Astronomical Telegrams
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
URL http://www.cfa.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)

     G. J. Garradd reports his discovery of a comet on images taken
with the 0.5-m Uppsala Schmidt telescope at Siding Spring
(discovery observation tabulated below), the object being diffuse
and 20" in diameter on images from Mar. 7.8 UT.  Following posting
on the 'NEOCP' webpage, E. Guido and G. Sostero (Castellammare di
Stabia, Italy) write that they obtained CCD images remotely using a
0.25-m f/3.4 reflector near Moorook, Australia, on Mar. 8.7; thirty
co-added 60-s exposures show the comet to have cometary appearance,
with a coma diameter of nearly 10" with a strong central
condensation and a broad tail 18" long toward the north.

     2008 UT             R.A. (2000) Decl.       Mag.
     Mar.  5.77805   19 35 19.03   -41 44 05.8   17.8

The available astrometry, the following preliminary parabolic
orbital elements, and an ephemeris appear on MPEC 2008-E70.

     T = 2008 Oct. 31.240 TT          Peri. = 229.143
                                      Node  = 106.195   2000.0
     q = 5.26127 AU                   Incl. = 106.590

     S. Nakano, Sumoto, Japan, reports the discovery by H. Kaneda
(Sapporo, Japan) of an apparent nova (mag 8.2 +/- 0.3) on
unfiltered CCD frames taken on Mar. 7.801 UT using a telephoto lens,
giving the position of the variable as R.A. = 19h58m33s.4, Decl. =
+29o52'04" (equinox 2000.0).  Nakano forwards the following precise
position end figures for the nova from a CCD exposure on Mar. 8.716
by K. Kadota (Ageo, Japan, 0.25-m reflector):  33s.39, 06".5, mag
7.4.  Numerous additional apparent independent discoveries were
reported on CBET 1291.
     D. Nogami and J. Kuriyama, Kyoto University; and I. Iwata,
National Astronomical Observatory of Japan, write that a low-
resolution (R about 500) spectrum (range 400-800 nm), taken of the
new variable on Mar. 8.794 UT with a 1.88-m telescope (+ KOOLS) at
the Okayama Astrophysical Observatory, shows a blue continuum with
strong Balmer and Fe II lines having prominent P-Cyg profiles.  The
FWHM of the emission component of H_alpha is about 1000 km/s, and
the minimum of the H_alpha absorption is blueshifted from the
emission peak by about 880 km/s.  These features suggest that this
object is indeed a classical nova before or around maximum.

                      (C) Copyright 2008 CBAT
2008 March 8                   (8927)            Daniel W. E. Green

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