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IAUC 8632: C/2005 W2; 2005kg, 2005kh, 2005ki, 2005kj, 2005kk

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                                                  Circular No. 8632
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)


COMET C/2005 W2 (CHRISTENSEN)
     A comet with a slightly asymmetric 20" coma elongated toward
p.a. 230-260 deg has been found by E. J. Christensen on Catalina
Sky Survey images taken with the 0.68-m Schmidt telescope
(discovery observation below).  Others making follow-up
observations that noted the cometary appearance include P.
Birtwhistle (Great Shefford, Berkshire, U.K., 0.4-m reflector, Nov.
20.8 UT; 12" coma with a brighter 3" center and a possible faint
extension about 14" long in p.a. 55 deg), J. McGaha (Tucson, AZ,
0.62-m reflector, Nov. 21.2; uniform, round 10" coma, no
elongation), and J. Young (Table Mtn., 0.61-m reflector, Nov. 21.3,
thin cirrus and moonlight; bright, diffuse 8" coma with faint outer
area extending 16" to the northeast, and a second poorly defined
extension seen around p.a. 240 deg in stacked images).  Further
astrometry is given on MPEC 2005-W24, together with parabolic
orbital elements (T = 2005 June 1.107 TT, q = 3.17566 AU, Peri. =
33.786, Node = 348.766, i = 11.836, equinox 2000.0), and an
ephemeris.

     2005 UT             R.A. (2000) Decl.       Mag.   Observer
     Nov. 20.27730    3 47 21.19   +35 52 46.3   17.1   Christensen


SUPERNOVAE 2005kg, 2005kh, 2005ki, 2005kj, 2005kk
     Five apparent supernovae have been reported from unfiltered
CCD images:  2005kj by the "Nearby Supernova Factory" collaboration
via Palomar NEAT frames (cf. CBET 296), and the rest by E. Lee, N.
J. Ponticello, and W. Li (LOSS/KAIT; cf. IAUC 8630).

SN      2005 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2005kg  Nov. 17.09  21 11 39.15  -23 10 20.0  17.0  1".6 W, 2".7 S
2005kh  Nov. 17.54  10 01 25.41  +15 46 49.4  18.7  7".6 W, 37" N
2005ki  Nov. 18.57  10 40 28.22  + 9 12 08.4  18.0  2".0 W, 71" N
2005kj  Nov. 17.5    8 40 09.18  - 5 36 02.2  16.3     --
2005kk  Nov. 17.50  10 39 40.02  +25 19 25.1  17.7  13".0 E, 4".0 N

Additional approximate KAIT magnitudes:  2005kg in MCG -04-50-7,
Oct. 22.12 UT, [19.0; Nov. 18.08, 17.2.  SN 2005kh in NGC 3094, May
13.20, [19.5; Nov. 18.50, 18.6.  SN 2005ki in NGC 3332, May 13.20,
[19.5; Nov. 19.58, 17.7.  2005kk in NGC 3323, Apr. 6.18, [19.5; Nov.
21.52, 17.7.  SNe 2005kg and 2005ki are type-Ia supernovae, while
2005kh is of type II and 2005kj is of type IIn (cf. CBETs 295, 296,
299).

                      (C) Copyright 2005 CBAT
2005 November 22               (8632)            Daniel W. E. Green

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