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IAUC 6752: 1997 T1

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                                                 Circular No. 6752
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)
BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html
Phone 617-495-7244/7440/7444 (for emergency use only)


COMET 1997 T1
     Additional precise observations:

     1997 UT             R.A. (2000) Decl.        m1    Observer
     Oct.  5.78309   22 34 04.55   +71 48 35.3          Ticha
           5.78400   22 34 03.32   +71 48 33.4            "
           5.78484   22 34 02.17   +71 48 31.5            "
           5.98597   22 29 28.49   +71 40 48.8          Galad
           5.99381   22 29 17.98   +71 40 30.1            "
           5.99954   22 29 10.29   +71 40 16.4   11.3     "
           6.04894   22 28 03.75   +71 38 17.7          Pravec
           6.05128   22 28 00.58   +71 38 11.9            "
           6.05365   22 27 57.45   +71 38 06.2            "
           6.05544   22 27 55.06   +71 38 01.9            "
           6.10049   22 26 56.86   +71 36 17.0   12.4   Offutt
           6.10392   22 26 52.24   +71 36 09.0   12.5     "
           6.10675   22 26 48.47   +71 36 01.4   12.4     "
           6.10963   22 26 44.58   +71 35 54.6   12.4     "
           6.11253   22 26 40.67   +71 35 47.9   12.4     "
           6.11587   22 26 36.17   +71 35 40.1   12.5     "
           6.48911   22 18 23.61   +71 19 42.4          Endate
           6.49730   22 18 12.97   +71 19 21.0            "
           6.48976   22 18 23.06   +71 19 43.6          Nakamura
           6.49184   22 18 20.32   +71 19 38.3            "
           6.49392   22 18 17.60   +71 19 32.7            "
           6.50377   22 18 04.65   +71 19 05.8   10.9   Ikari
           6.51144   22 17 54.66   +71 18 45.3            "

J. Ticha and M. Tichy (Klet).  0.57-m f/5.2 reflector + CCD.
A. Galad and A. Pravda (Modra).  0.6-m f/5.5 reflector + CCD.
P. Pravec (Ondrejov).  0.65-m f/3.6 reflector + CCD.
W. Offutt (Cloudcroft).  0.60-m f/7 Ritchey-Chretien reflector + CCD.
K. Endate (Kitami).  0.25-m f/3.4 hyperboloid astrocamera + CCD.
A. Nakamura (Kuma).  0.60-m f/6 Ritchey-Chretien reflector + CCD.
Y. Ikari (Moriyama).  0.25-m reflector + CCD.

     Visual m_1 estimates:  Oct. 6.07 UT, 9.9 (D. W. E. Green,
Lexington, MA, 0.25-m reflector); 6.11, 11.0 (G. W. Kronk, Troy,
IL, 0.33-m reflector; 2' tail in  p.a. 130 deg); 6.17, 10.0 (C. E.
Spratt, Victoria, BC, 0.20-m reflector).

                      (C) Copyright 1997 CBAT
1997 October 6                 (6752)            Daniel W. E. Green

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