[IAUC] IAUC 8750: C/2006 S2; 2006fo-2006gh [25139-2007/05-R1]

Vie Jun 22 17:05:39 ART 2007

                                                  Circular No. 8750
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS en CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT en CFA.HARVARD.EDU (science)
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Phone 617-495-7440/7244/7444 (for emergency use only)

COMET C/2006 S2 (LINEAR)
     An apparently asteroidal object discovered by the LINEAR
project, and posted on the 'NEO Confirmation Page', has been found
by J. Young to show a round coma with an outer faint shell 10" in
diameter and a central condensation 5" in diameter, with no hint of
tail, on CCD images taken on Sept. 18.12-18.16 UT with the Table
Mountain 0.61-m f/16 reflector; his images from Sept. 19.14-19.17
show a round, diffuse coma of diameter 8", and again no tail seen
in long exposures.

     2006 UT             R.A. (2000) Decl.       Mag.
     Sept.17.17360   18 16 38.52   +46 40 51.1   19.0

The available astrometry, the following preliminary parabolic
orbital elements, and an ephemeris appear on MPEC 2006-S26.

     T = 2007 May  11.772 TT          Peri. = 168.186
                                      Node  = 114.262   2000.0
     q = 3.10570 AU                   Incl. =  98.828

SUPERNOVAE 2006fo-2006gh
     Two apparent supernovae have been reported following discovery
on unfiltered CCD images:  2006fp by T. Puckett and R. Gagliano (cf.
IAUC 8741); and 2006gc by R. Mostardi and W. Li (LOSS/KAIT; cf.
IAUC 8744).  Also, an additional 18 supernovae (2006fo, 2006fq-
2006gb, and 2006gd-2006gh -- most being fainter than magnitude g =
20) have been reported by J. Frieman on behalf of the Sloan Digital
Sky Survey II collaboration, with details published on CBETs 624,
627, and 629; the brightest, 2006fo (a type-Ia supernova
approximately 1 week past maximum), is included below.

SN      2006 UT       R.A.  (2000.0)  Decl.    Mag.     Offset
2006fo  Sept. 16      2 32 38.89  + 0 37 03.0  18.2  6".0 W, 0".6 N
2006fp  Sept. 17.15  22 45 41.13  +73 09 47.8  17.7  13".9 E, 3".6 N
2006gc  Sept. 18.52   4 58 50.81  + 6 58 28.6  18.2  13".1 E, 10".9 S

Additional magnitudes for 2006fp in UGC 12182:  2005 July 14, [19.6
(Puckett); 2006 Sept. 18.27 UT, 17.6 (J. Grcevich, 2.4-m Hiltner
telescope, MDM Observatory).  Additional KAIT magnitudes for 2006gc
in UGC 3219:  Feb. 11.23, [19.5; Sept. 8.53, 18.1.

                      (C) Copyright 2006 CBAT
2006 September 19              (8750)            Daniel W. E. Green