Circular No. 7527

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/2000 W1 (UTSUNOMIYA-JONES) Ephemeris from orbital elements on IAUC 7526:

2000TT α_{2000} δ_{2000} Δ r ϵ β m_{1}
Nov. 22 9^{h}44.^{m}11 −58^{o}21.^{′}0 0.302 0.949 73.^{o}9 88.^{o}3 7.7
23 10 11.94 −64 37.5 0.290 0.929 69.9  93.0 7.5
24 10 59.7 −70 45.7 0.282 0.908 65.7  97.9 7.3
25 12 27.0 −75 37.7 0.280 0.888 61.4 102.6 7.2
26 14 40.5 −77 07.6 0.282 0.867 57.2 106.9 7.1
27 16 37.9 −74 25.1 0.290 0.846 53.4 110.6 7.1
28 17 45.64 −69 33.3 0.303 0.825 50.1 113.6 7.1
29 18 23.11 −64 14.2 0.320 0.804 47.3 115.7 7.1
30 18 45.59 −59 08.4 0.341 0.783 45.0 117.1 7.1
Dec. 1 19 00.18 −54 29.5 0.364 0.762 43.2 117.8 7.1
2 19 10.22 −50 20.7 0.390 0.741 41.6 117.9 7.2
3 19 17.43 −46 40.9 0.418 0.720 40.3 117.5 7.2
4 19 22.75 −43 27.5 0.448 0.698 39.2 116.8 7.2
5 19 26.74 −40 37.2 0.479 0.677 38.2 115.8 7.2
6 19 29.74 −38 07.0 0.512 0.656 37.2 114.6 7.2
7 19 32.00 −35 54.0 0.545 0.634 36.3 113.1 7.2
8 19 33.65 −33 55.9 0.579 0.613 35.4 111.4 7.2
9 19 34.81 −32 10.5 0.614 0.591 34.4 109.6 7.2
10 19 35.55 −30 36.1 0.649 0.570 33.5 107.6 7.1
11 19 35.93 −29 11.3 0.685 0.549 32.5 105.4 7.1
12 19 35.98 −27 54.7 0.721 0.528 31.5 103.0 7.0

Additional visual m_{1} and coma-diameter estimates: Nov. 26.555 UT, 8.2, 3′.2 (A. Pearce, Nedlands, W. Australia, 0.41-m reflector); 26.63, 7.4, 5′.0 (M. Mattiazzo, Wallaroo, S. Australia, 25×100 binoculars; short tail).

SUPERNOVA 2000eo IN MCG –2-9-3 W. Li, University of California at Berkeley, on behalf of LOTOSS (cf.

IAUC 7514), reports the independent discovery of SN 2000eo (cf. IAUC 7524) on unfiltered images taken with the 0.8-m Katzman Automatic Imaging Telescope (KAIT) on Nov. 25.4 UT (magnitude ∼ 15.5). Li provides the following position end figures for SN 2000eo: 08^{s}.18, 54′′.2. A KAIT unfiltered image of the same field taken on Nov. 5.4 showed nothing at the position of the supernova (limiting magnitude ∼ 18.5). Notice that SN 2000eo has brightened ∼ 3.7 mag since Nov. 16.

2000 November 26  \begin{matrix}c \\ ◯ \end{matrix} Copyright 2000 CBAT  Daniel W. E. Green