MPEC 2006-W118: COMET P/2006 W4 (HILL)
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M.P.E.C. 2006-W118 Issued 2006 Nov. 30, 15:48 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
COMET P/2006 W4 (HILL)
Observations:
PK06W040 C2006 11 22.25485 03 12 01.11 +26 23 39.8 18.9 T EW118703
PK06W040 C2006 11 22.26649 03 12 00.82 +26 23 36.1 19.5 T EW118703
PK06W040 C2006 11 22.27811 03 12 00.39 +26 23 31.8 19.3 T EW118703
PK06W040 C2006 11 22.28977 03 11 59.82 +26 23 28.9 19.1 T EW118703
PK06W040 C2006 11 23.85130 03 11 10.29 +26 14 40.7 19.2 T EW118235
PK06W040 C2006 11 23.96846 03 11 06.48 +26 14 00.5 19.1 T EW118235
PK06W040 C2006 11 24.74627 03 10 41.88 +26 09 36.0 EW118349
PK06W040 C2006 11 24.75057 03 10 41.75 +26 09 34.2 EW118349
PK06W040 C2006 11 24.75488 03 10 41.63 +26 09 32.5 19.4 T EW118349
PK06W040 C2006 11 26.76683 03 09 39.26 +25 58 08.1 19.2 T EW118215
PK06W040 C2006 11 27.17634 03 09 26.18 +25 55 46.0 EW118204
PK06W040 C2006 11 27.18475 03 09 25.99 +25 55 42.7 19.3 N EW118204
PK06W040 C2006 11 27.81618 03 09 06.80 +25 52 07.5 19.7 N EW118213
PK06W040 C2006 11 27.81852 03 09 06.74 +25 52 06.6 19.7 N EW118213
PK06W040 C2006 11 27.81968 03 09 06.70 +25 52 06.3 19.7 N EW118213
PK06W040 C2006 11 27.82201 03 09 06.65 +25 52 05.5 19.7 N EW118213
Observer details:
204 Schiaparelli Observatory. Observer L. Buzzi. 0.60-m f/4.64 reflector
+ CCD.
213 Observatorio Montcabre. Observer R. Naves. Measurer M. Campas. 0.30-m
f/10 Schmidt-Cassegrain + CCD.
215 Buchloe. Observer W. Hasubick. 0.44-m f/4.6 reflector + CCD.
235 CAST Observatory, Talmassons. Observers R. Ligustri, F. Romanello.
Measurer R. Ligustri. 0.35-m f/5 reflector + CCD.
349 Ageo. Observer K. Kadota. 0.25-m f/5.0 reflector + CCD.
703 Catalina Sky Survey. Observer R. E. Hill. Measurers
E. C. Beshore, E. J. Christensen, A. R. Gibbs, A. D. Grauer,
R. E. Hill, R. A. Kowalski, S. M. Larson. 0.68-m Schmidt + CCD.
Orbital elements:
P/2006 W4 (Hill)
T 2009 Feb. 22.189 TT MPC
q 4.53287 (2000.0) P Q
n 0.061754 Peri. 250.393 -0.520419 -0.665623
a 6.33910 Node 243.103 +0.812175 -0.579278
e 0.28494 Incl. 36.854 -0.263696 -0.470514
P 16.0
From 45 observations 2006 Nov. 19-27.
Ephemeris:
P/2006 W4 (Hill)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2006 11 21 03 12.69 +26 30.7 4.623 5.598 170.0 1.7 19.3
2006 12 01 03 07.52 +25 33.8 4.635 5.578 161.4 3.2 19.3
2006 12 11 03 03.01 +24 36.1 4.678 5.558 150.8 5.0 19.3
2006 12 21 02 59.45 +23 40.0 4.749 5.538 139.9 6.6 19.3
2006 12 31 02 57.05 +22 47.8 4.845 5.518 129.1 7.9 19.3
2007 01 10 02 55.93 +22 01.1 4.960 5.498 118.6 9.0 19.4
2007 01 20 02 56.12 +21 20.9 5.089 5.479 108.3 9.8 19.4
2007 01 30 02 57.61 +20 47.8 5.228 5.459 98.4 10.3 19.5
Further observations of this comet are desirable.
Brian G. Marsden (C) Copyright 2006 MPC M.P.E.C. 2006-W118
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