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IAUC 8720: 2006cs, 2006ct, 2006cu, 2006cv, 2006cw; C/2006 J4-J8

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                                                  Circular No. 8720
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)


SUPERNOVAE 2006cs, 2006ct, 2006cu, 2006cv, 2006cw
     Five new apparent supernovae found on unfiltered CCD frames
have been reported:  2006cs by N. Y. Lee and W. Li (LOSS/KAIT; cf.
IAUC 8716); 2006ct by R. Quimby and P. Mondol (cf. IAUC 8713); and
the rest by the 'Nearby Supernova Factory' collaboration (cf. CBETs
538, 540).

SN      2006 UT     R.A.  (2000.0)  Decl.    Mag.     Offset
2006cs  June 3.29  13 45 33.89  +35 36 36.6  17.8  13".4 W, 3".8 S
2006ct  May 25.21  12 09 57.03  +47 05 43.9  17.0  3".4 E, 1".4 S
2006cu  May 29.4   14 47 43.31  + 9 39 33.9  18.1      --
2006cv  June 5.4   14 47 47.83  +23 17 58.6  19.1      --
2006cw  June 5.4   15 03 01.01  +21 41 40.6  19.4      --

Additional magnitudes for 2006cs in MCG +06-30-79:  May 18.29 UT,
[19.0; June 4.31, 17.7.  A spectogram of 2006cs obtained on June
5.29 shows it to be a type-Ia supernova around maximum light
(details on CBET 539).  Additional magnitudes for 2006ct, which is
also a type-Ia supernova (details on CBET 537):  2004 Dec. 15-2006
Jan. 28, [18.7 (co-addition of images); May 31.21, 16.9; June 3.19,
16.6.  SNe 2006cu and 2006cv are type-IIn supernovae, and 2006cw is
a type-II supernova (cf. CBET 538, 540).


COMETS C/2006 J4-J8 (SOHO)
     Additional comets have been found on SOHO website images (cf.
IAUC 8719) -- all being Kreutz sungrazers except C/2006 J5 (Meyer
group).  C/2006 J4 was stellar in C3 images, reaching mag 4.9 on
May 8.762 UT at 9.1 solar radii; C2 images showed a very faint tail
that reached a length of 500" on May 9.188 at 3.7 solar radii.
C/2006 J5 was very small, stellar but slightly elongated in the
direction of motion, and too faint for photometry.  C/2006 J6,
which was also found by J. Sachs, was extremely faint, diffuse, and
elongated.  C/2006 J7 and J8 were very close (only a few pixels
apart), the leading component (J7) being marginally larger,
brighter, and longer-lasting; both components were small and
stellar.

 Comet        2006 UT      R.A.(2000)Decl.   Inst.  F    MPEC
 C/2006 J4    May  7.696   3 16.6   +13 35   C3/2   KB   2006-L31
 C/2006 J5         7.979   3 03.2   +18 16   C2     HS   2006-L31
 C/2006 J6         8.854   3 07.3   +15 52   C2     RM   2006-L31
 C/2006 J7        10.163   3 12.1   +16 13   C2     TH   2006-L32
 C/2006 J8        10.163   3 12.1   +16 13   C2     TH   2006-L32

                      (C) Copyright 2006 CBAT
2006 June 8                    (8720)            Daniel W. E. Green

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