Central Bureau for Astronomical Telegrams
IAUC 7044: 1998 U5; C/1998 K5
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Circular No. 7044
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)
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Phone 617-495-7244/7440/7444 (for emergency use only)
COMET 1998 U5
Frank Shelly reports that one of the recent LINEAR discoveries
is clearly a comet. The following precise CCD observations are
available:
1998 UT R.A. (2000) Decl. m1 Observer
Oct. 30.37456 6 53 34.08 +28 57 57.5 14.0 Blythe
30.38514 6 53 32.32 +28 58 58.5 "
30.39590 6 53 29.51 +28 59 50.6 "
30.40675 6 53 27.55 +29 00 40.7 "
30.41759 6 53 24.83 +29 01 36.5 "
30.98976 6 51 15.61 +29 48 38.5 Manca
30.99595 6 51 14.09 +29 49 11.4 "
31.07056 6 50 56.18 +29 55 29.9 14.3 Marechal
31.07340 6 50 55.38 +29 55 44.2 14.5 "
31.07608 6 50 54.75 +29 55 57.8 14.3 "
31.07862 6 50 54.19 +29 56 10.5 14.1 "
31.08992 6 50 51.39 +29 57 08.4 14.4 "
31.11426 6 50 45.56 +29 59 13.0 13.9 "
31.11666 6 50 44.95 +29 59 24.2 14.0 "
31.20729 6 50 22.74 +30 07 07.7 14.6 "
31.20854 6 50 22.36 +30 07 14.7 14.0 "
31.30463 6 49 59.38 +30 15 30.8 12.3 Kowalski
31.31233 6 49 57.58 +30 16 10.1 12.5 "
31.31852 6 49 55.94 +30 16 42.3 12.5 "
M. Blythe, F. Shelly, and M. Bezpalko (Lincoln Laboratory ETS).
Measurers J. Stuart, H. Viggh, R. Sayer. 1.0-m f/2.15 reflector.
F. Manca and M. Cavagna (Sormano). 0.5-m reflector. Diffuse coma
and 2' westward tail.
F. Marechal (Observatoire de Dax). 0.20-m reflector. Tail about
2' in p.a. 260 deg.
R. A. Kowalski (Zephyrhills). 0.18-m f/9 reflector.
COMET C/1998 K5 (LINEAR)
Visual m_1 estimates: Sept. 20.05 UT, 12.2 (M. Meyer,
Frauenstein, Germany, 0.25-m reflector); Oct. 2.42, 12.9 (A. Hale,
Cloudcroft, NM, 0.41-m reflector); 19.81, 13.0 (A. Pearce,
Nedlands, W. Australia, 0.41-m reflector); 25.79, 13.5 (W.
Hasubick, Buchloe, Germany, 0.44-m reflector); 27.01, 14.2 (R. J.
Bouma, Groningen, The Netherlands, 0.25-m reflector).
(C) Copyright 1998 CBAT
1998 October 31 (7044) Daniel W. E. Green
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