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IAUC 8095: 2003cc, 2003cd, 2003ce, 2003cf; XTE J1807-294; C/2002 X5

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                                                  Circular No. 8095
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 2003cc, 2003cd, 2003ce, 2003cf
     Further to IAUC 8090, W. M. Wood-Vasey, G. Aldering, and P.
Nugent report the discoveries of additional apparent supernovae on
unfiltered NEAT images.

SN      2003 UT      R.A.  (2000.0)  Decl.    Mag.      Offset
2003cc  Feb.  3.53  10 57 29.60  +23 35 34.7  20.3   12".3 E
2003cd  Feb. 12.38  10 12 02.33  +11 16 39.1  19.5   5" W, 4" S
2003ce  Mar. 11.28  10 12 10.43  -30 13 58.1  19.5   10" E, 5" N
2003cf  Feb. 22.38  10 37 43.07  + 7 04 54.1  19.5   0".7 W, 4".4 S

Additional magnitudes from NEAT images:  SN 2003cc, 2002 Mar. 22.41
UT, [20.6; 2003 Jan. 19.42, [20.3, Feb. 28.54, 19.5; Mar. 8.42,
19.5; 9.37, 19.5.  SN 2003cd, Feb. 3.46, [20.6; 22.24, 19.5; 25.55,
19.8; 26.52, 19.8; 27.55, 20.1; Mar. 6.44, 20.0.  SN 2003ce, 2002
Jan. 13.41, [21.0; 2003 Mar. 14.20, 19.3.  SN 2003cf, 2002 May
23.18, [20.5; 2003 Feb. 20.51, [19.5; 28.45, 18.7; Mar. 6.47, 19.0;
14.17, 19.2; 14.44, 19.5.


XTE J1807-294
     C. B. Markwardt, University of Maryland and Goddard Space
Flight Center (GSFC); M. Juda, Harvard-Smithsonian Center for
Astrophysics, and J. H. Swank, GSFC, report that the Chandra X-ray
Observatory observed XTE J1807-294 on Mar. 10.8 UT, and the best-
fit position was determined to be R.A. = 18h06m59s.8, Decl. =
-29o24'30" (equinox 2000.0; uncertainty about 1").  On Mar. 13.9,
the RXTE PCA measured a 2-10-keV x-ray flux of 20 mCrab.
Pulsations are still detected, and an orbital Doppler modulation is
clearly evident.  The best-fit orbital period is 40.0741 +/- 0.0005
min, confirming it as the shortest period of any of the four
accreting millisecond pulsars.  Optical observations are encouraged.


COMET C/2002 X5 (KUDO-FUJIKAWA)
     Visual m_1 estimates:  Feb. 16.04 UT, 5.3 (J. D. Shanklin,
Stanley, Falkland Is., 10x50 binoculars); 23.97, 7.2 (A. Amorim,
Florianopolis, Brazil, 7x50 binoculars); Mar. 3.41, 7.9 (D. A. J.
Seargent, Cowra, N.S.W., 25x100 binoculars); 9.42, 8.8 (Y. Nagai,
Yamanashi, Japan, 0.32-m reflector); 12.82, 9.4 (N. Biver,
Pico-Veleta, Spain, 0.20-m reflector).

                      (C) Copyright 2003 CBAT
2003 March 20                  (8095)            Daniel W. E. Green

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