[IAUC] IAUC 9097: P/2009 S1 = P/2001 Q10; P/2009 W1; V496 Sct [25139-2010/01-R1]
IAUC mailing list
quai en cfa.harvard.edu
Mar Dic 1 12:56:18 ART 2009
Circular No. 9097
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS en CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT en CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)
COMET P/2009 S1 = P/2001 Q10 (GIBBS)
R. Matson (Irvine, CA) has identified astrometric observations
of this comet (cf. IAUC 9074) on NEAT 1.2-m reflector frames taken
on 2001 Aug. 23 and 24 at Haleakala and on 2001 Sept. 24 and Oct. 27
at Palomar.
2001 UT R.A. (2000) Decl. Mag.
Aug. 23.60821 2 14 09.59 - 6 22 20.8 20.0
24.61243 2 14 47.80 - 6 35 40.8 20.2
Sept.24.48475 2 22 42.84 -14 38 01.7 19.8
24.50631 2 22 42.65 -14 38 22.6 19.3
Oct. 27.27596 2 09 16.92 -22 00 18.3 19.3
27.28631 2 09 16.49 -22 00 23.6 19.9
27.29669 2 09 16.13 -22 00 28.7 19.7
The following revised orbital elements by B. G. Marsden link the
2001 and 2009 apparitions; 2001 elements and residuals appear on
MPEC 2009-X01.
Epoch = 2009 July 28.0 TT
T = 2009 Aug. 4.1741 TT Peri. = 224.0034
e = 0.378003 Node = 157.9798 2000.0
q = 2.440203 AU Incl. = 26.1102
a = 3.923174 AU n = 0.1268375 P = 7.77 years
COMET P/2009 W1 (HILL)
Additional astrometry has shown that this comet (cf. IAUC 9095)
is of short period; orbital elements from MPEC 2009-W147:
T = 2009 Sept.26.669 TT Peri. = 52.372
e = 0.33828 Node = 56.066 2000.0
q = 2.97739 AU Incl. = 14.625
a = 4.49949 AU n = 0.103266 P = 9.54 years
V496 SCUTI
Visual magnitude estimates (cf. IAUC 9095): Nov. 19.726 UT,
7.2 (K. Hornoch, Vohancice, Czech Republic); 21.719, 7.4 (P.
Schmeer, Bischmisheim, Germany); 22.067, 7.5 (C. Hergenrother,
Tucson, AZ, U.S.A.); 25.672, 7.5 (K. Sarneczky, Budapest, Hungary);
26.708, 7.4 (W. Vollmann, Vienna, Austria); 27.065, 7.5
(Hergenrother); 28.683, 7.2 (Sarneczky).
(C) Copyright 2009 CBAT
2009 December 1 (9097) Daniel W. E. Green
Más información sobre la lista de distribución Iauc