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IAUC 8320: C/2004 F4; 2004bh; C/2002 T7

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                                                  Circular No. 8320
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)


COMET C/2004 F4 (BRADFIELD)
     Ephemeris from orbital elements on IAUC 8319 (H = 8.0, n = 3):

2004 TT     R. A. (2000) Decl.   Delta     r    Elong. Phase    Mag.
Apr.  5     2 05.53   - 1 44.5   1.288   0.469   18.8   43.4    6.1
      7     2 07.42   - 1 40.8   1.227   0.412   17.9   48.3    5.6
      9     2 08.68   - 1 29.6   1.159   0.353   16.9   55.4    4.9
     11     2 08.75   - 1 03.7   1.085   0.294   15.5   66.0    4.2
     13     2 06.59   - 0 07.6   1.005   0.238   13.6   82.6    3.3
     15     2 00.31   + 1 51.7   0.923   0.191   10.3  109.6    2.4
     17     1 48.03   + 5 43.1   0.856   0.169    5.1  148.4    1.9
     19     1 32.28   +11 17.5   0.830   0.186    4.0  157.8    2.1
     21     1 18.89   +16 57.2   0.845   0.231   10.3  128.6    2.9
     23     1 09.74   +21 44.3   0.882   0.287   15.8  107.3    3.7
     25     1 04.02   +25 36.7   0.929   0.346   20.1   92.6    4.4
     27     1 00.66   +28 46.2   0.980   0.404   23.4   82.0    5.0
     29     0 58.90   +31 23.7   1.031   0.462   26.2   74.1    5.6
May   1     0 58.23   +33 37.4   1.081   0.518   28.5   67.9    6.0
      3     0 58.32   +35 33.3   1.130   0.573   30.4   63.0    6.5
      5     0 58.93   +37 15.3   1.177   0.626   32.1   58.9    6.8


SUPERNOVA 2004bh IN UGC 5161
     Further to IAUC 8317, M. Armstrong reports his discovery of an
apparent supernova on unfiltered CCD images taken on Apr. 6.906
(poor image), 9.963 (mag about 16.9), and 11.063 UT (mag about
17.0) with a 0.35-m reflector.  SN 2004bh is located at R.A. =
9h40m56s.47, Decl. = +27o46'46".6 (equinox 2000.0), which is
approximately 1".3 west and 6" north of the center of UGC 5161.
Nothing was visible at this position on Armstrong's images taken on
2003 Nov. 12 (limiting mag 18.0), and 2004 Feb. 26 (limiting mag
18.5), or on Palomar Sky survey red and blue plates.  M. Mobberley,
Cockfield, U.K., also obtained an unfiltered CCD image of SN 2004bh
at mag 17 on Apr. 10.873 (position end figures 56s.40, 47".5).


COMET C/2002 T7 (LINEAR)
     Visual total-magnitude estimates in twilight:  Apr. 9.36 UT,
4.6: (A. Amorim, Florianopolis, Brazil, 20x80 binoculars); 10.89,
5.0 (A. Pearce, Kalgoorlie, W. Australia, 20x80 binoculars); 11.88,
4.9 (Pearce).

                      (C) Copyright 2004 CBAT
2004 April 12                  (8320)            Daniel W. E. Green

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