Central Bureau for Astronomical Telegrams

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IAUC 8569: 2005cx, 2005cy, 2005cz; C/2005 L7, C/2005 L8,, C/2005 L9

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IAUC number 

                                                  Circular No. 8569
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 2005cx, 2005cy, 2005cz
     Several new apparent supernovae have been found on unfiltered
CCD images:  2005cx by A. Dimai (Cortina d'Ampezzo, Italy, via the
CROSS program, with the 0.5-m "Ullrich" telescope; cf. IAUC 7373),
2005cy by A. Sehgal, J. Newton, and T. Puckett (the Puckett
Observatory Supernova Search, with Sehgal's 0.50-m telescope at
Osoyoos, BC; cf. IAUC 8534), and 2005cz by K. Itagaki (Teppo-cho,
Yamagata, Japan, 0.60-m f/5.7 reflector; via S. Nakano, Sumoto,
Japan).

SN      2005 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2005cx  July 15.05   1 58 54.79  +36 40 34.8  15.5   4" N
2005cy  July 15.27  18 26 49.11  +51 08 30.4  17.9   7".0 W, 9".8 N
2005cz  July 17.50  12 37 27.85  +74 11 24.5  16.0   12" E, 6" S

Additional approximate magnitudes, from images by the respective
discoverers unless otherwise noted:  SN 2005cx in IC 178, 2004 Dec.
10, [18.5; 2005 Feb. 23, [18.5; July 16.01 UT, 15.4.  SN 2005cy in
UGC 11241, 2002 July 12, [20.0; 2004 Aug. 10, [20.0; July 16.17,
18.0 (D. George, Ottawa, Canada, 0.35-m reflector).  SN 2005cz in
NGC 4589, 2001 Nov. 25, [19; 2005 June 20, [18.5; July 18.23, 16
(Puckett; image taken by Sehgal).  Dimai adds that nothing is
visible at the location of 2005cx on Palomar Sky Survey red and
blue plates.  Itagaki adds that nothing is visible at the location
of 2005cz on the Digitized Sky Survey.  Puckett also provides the
following position end figures for 2005cz:  28s.12, 24".7.


COMETS C/2005 L7, C/2005 L8, AND C/2005 L9 (SOHO)
     Additional Kreutz sungrazing comets have been found on SOHO
website images (cf. IAUC 8565).  C/2005 L7 was stellar in
appearance with no tail in C3 images, reaching mag about 5.5 at 9.8
solar radii on June 6.612 UT; C2 images showed a very thin, wispy,
tail that was unusually faint for such a bright Kreutz comet,
reaching a length of 325" on June 7.150.  C/2005 L8 was diffuse
with no tail, reaching mag about 7.8 at 6.1 solar radii on June
6.101.  C/2005 L9 was tiny and stellar, with no tail; it reached
mag about 7.0 at 6.4 solar radii on June 7.000.

 Comet       2005 UT       R.A.(2000)Decl.  Inst.  F    MPEC
 C/2005 L7   June 5.818    4 58.7   +18 25   C3/2  TH   2005-N75
 C/2005 L8        6.061    4 55.7   +20 54   C2    HS   2005-N75
 C/2005 L9        6.679    4 59.1   +20 06   C3/2  BZ   2005-N75

                      (C) Copyright 2005 CBAT
2005 July 18                   (8569)            Daniel W. E. Green

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