Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 8248: P/2003 UD_16; NOVAE IN M31

The following International Astronomical Union Circular may be linked-to from your own Web pages, but must not otherwise be redistributed (see these notes on the conditions under which circulars are made available on our WWW site).


Read IAUC 8247  SEARCH Read IAUC 8249

View IAUC 8248 in .dvi or .ps format.
IAUC number


                                                  Circular No. 8248
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 P/2003 UD_16 (LONEOS)
     An apparently asteroidal object with not-unusual motion, found
by LONEOS on Oct. 16 (the discovery observation given below,
together with other astrometry, appeared on MPS 88336, 90581, and
91035 with the designation 2003 UD_16; initial orbit on MPO 53844),
has been found by C. W. Hergenrother to show a circular, condensed
11" coma and no tail on co-added 900-s R-band CCD exposures taken
on Nov. 30 with the Mt. Hopkins 1.2-m reflector (astrometry below
measured by T. B. Spahr).  Additional unpublished LINEAR
observations also appear below.

     2003 UT             R.A. (2000) Decl.       Mag.   Observer
     Oct. 16.39886    2 59 44.23   + 7 21 24.7   18.8   LONEOS

     Nov. 30.20174    2 29 20.86   + 8 58 14.8   19.3   LINEAR
          30.20642    2 29 20.72   + 8 58 15.3          Hergenrother
          30.21402    2 29 20.46   + 8 58 17.0   18.5     "
          30.24099    2 29 19.45   + 8 58 23.0   19.3   LINEAR
          30.25389    2 29 19.05   + 8 58 25.6   19.6     "

     The following improved orbital elements by B. G. Marsden are
from 31 observations, Oct. 16-Nov. 30.

     T = 2004 Mar.  3.6269 TT         Peri. =   5.0941
     e = 0.381095                     Node  =  55.1589  2000.0
     q = 3.650531 AU                  Incl. =  23.4248
       a =  5.898372 AU    n = 0.0688028    P =  14.325 years


NOVAE IN M31
     Further to IAUC 8222, K. Hornoch reports the discovery of an
apparent nova located at R.A. = 0h42m53s.64, Decl. = +41o18'45".9
(equinox 2000.0), which is 105" east and 157" north of the center
of M31.  Available R-band magnitudes:  Nov. 2.878 UT, [18.6; 9.073,
16.9; 29.883, 18.7.  The new object is also absent from many more
of his images dating to 2002.
     Hornoch also reports additional R-band magnitudes of two
earlier apparent novae in M31, from images taken by P. Kusnirak and
himself:  (1) Hornoch's nova on IAUC 8222:  Oct. 14.480 UT, 17.8;
17.976, 18.2; Nov. 9.073, 18.4; 29.883, 19.9.  (2) the nova
announced on IAUC 8226:  Oct. 1.990, [19.0; 17.976, 17.9.

                      (C) Copyright 2003 CBAT
2003 December 3                (8248)            Daniel W. E. Green

Read IAUC 8247  SEARCH Read IAUC 8249

View IAUC 8248 in .dvi or .ps format.


Our Web policy. Index to the CBAT/MPC/ICQ pages.


Valid HTML 4.01!