[IAUC] IAUC 8720: 2006cs, 2006ct, 2006cu, 2006cv, 2006cw; C/2006 J4-J8 [25139-2007/05-R1]
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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.
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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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