Circular No. 7760

Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION

Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.

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COMET C/2001 W2 (BATTERS) A. Hale, Cloudcroft, NM, reports that this comet showed a 0′.8 coma

and total visual magnitude 12.7 on Nov. 22.09 UT (0.41-m reflector). Additional astrometry and the following preliminary parabolic orbital elements appear on MPEC 2001-W53:

T = 2001 Dec. 22.353 TT  ω = 140.^{o}487
Ω = 113.535 }2000.0
q = 1.06796 AU  i = 115.528
2001TT α_{2000}  δ_{2000}  Δ  r  ϵ  β  m_{1}
Nov. 17 17^{h}56.^{m}69 +30^{o}31.^{′}7 1.338 1.216 60.^{o}8 45.^{o}2 12.5
19 18 03.57 +28 02.4 1.357 1.201 59.1 44.9 12.5
21 18 10.01 +25 37.2 1.378 1.187 57.4 44.5 12.4
23 18 16.06 +23 16.4 1.401 1.173 55.6 44.0 12.4
25 18 21.74 +21 00.2 1.426 1.160 53.8 43.4 12.4
27 18 27.10 +18 49.0 1.453 1.147 51.9 42.6 12.4
29 18 32.17 +16 42.6 1.481 1.136 50.1 41.8 12.4
Dec. 1 18 36.98 +14 41.0 1.509 1.125 48.2 40.8 12.4
3 18 41.55 +12 44.2 1.539 1.115 46.3 39.7 12.4
5 18 45.90 +10 52.1 1.570 1.106 44.4 38.5 12.4
7 18 50.07 + 9 04.4 1.601 1.098 42.5 37.3 12.4
9 18 54.05 + 7 21.1 1.632 1.091 40.5 35.9 12.4
11 18 57.88 + 5 41.8 1.663 1.085 38.6 34.5 12.5
13 19 01.56 + 4 06.4 1.695 1.079 36.7 33.0 12.5
15 19 05.11 + 2 34.7 1.726 1.075 34.7 31.5 12.5
17 19 08.54 + 1 06.5 1.757 1.072 32.8 29.8 12.5

COMET C/1996 V1 (SOHO) Further to IAUC 7759, D. Hammer reports his measurements of an

additional Kreutz sungrazing comet found by X. Leprette on SOHO website images that were taken with the C3 coronagraph. The reduced astrometry and orbital elements by B. G. Marsden appear on MPEC 2001-V60.

1996 UT  α_{2000}  δ_{2000}
Nov. 8.115  14^{h}43.^{m}0  −18^{o}55′
2001 November 23  \begin{matrix}c \\ ◯ \end{matrix} Copyright 2001 CBAT  Daniel W. E. Green