Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 3034: P/AREND-RIGAUX

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 3033 SEARCH Read IAUC 3035
IAUC number 

                                                  Circular No. 3034
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Cable Address: SATELLITES, NEWYORK     Telex: 921428
Telephone: (617) 864-5758


PERIODIC COMET AREND-RIGAUX
     The following prediction, by B. G. Marsden, was derived by
applying perturbations by Mercury to Pluto to the predicted elements
for the 1971 return (IAUC 2248):

       T = 1978 Feb. 2.4921 ET    Epoch = 1978 Jan. 12.0 ET
   Peri. = 328.9891                   e =   0.599554
   Node  = 121.5241   1950.0          a =   3.600152 AU
   Incl. =  17.8557                   n =   0.1442855
       q =   1.441665 AU              P =   6.831 years

     1977 ET     R. A. (1950) Decl.     Delta     r      m2
     Apr.  7    23 12.51    -13 30.6    3.897   3.113   21.2
          17    23 26.44    -12 33.3
          27    23 40.42    -11 38.1    3.599   2.989   21.1
     May   7    23 54.44    -10 45.8
          17     0 08.48    - 9 57.6    3.263   2.862   20.9
          27     0 22.50    - 9 14.7
     June  6     0 36.49    - 8 38.5    2.902   2.732   20.6
          16     0 50.40    - 8 10.4
          26     1 04.17    - 7 52.3    2.531   2.600   20.3
     July  6     1 17.72    - 7 46.0
          16     1 30.95    - 7 53.7    2.163   2.466   19.9
          26     1 43.70    - 8 17.6
     Aug.  5     1 55.79    - 9 00.0    1.816   2.330   19.4
          15     2 06.97    -10 03.2
          25     2 16.92    -11 28.9    1.503   2.195   18.8
     Sept. 4     2 25.28    -13 17.6
          14     2 31.59    -15 27.9    1.240   2.060   18.2
          24     2 35.38    -17 54.9
     Oct.  4     2 36.32    -20 29.3    1.041   1.929   17.6
          14     2 34.21    -22 56.6
          24     2 29.37    -24 57.8    0.911   1.805   17.2
     Nov.  3     2 22.71    -26 13.9
          13     2 15.68    -26 29.3    0.847   1.690   17.0
          23     2 10.04    -25 36.1
     Dec.  3     2 07.30    -23 35.3    0.831   1.591   17.1

The magnitude, calculated from m2 = 15.5 + 5 log Delta + 5 log r +
0.03 (phase angle), refers to the nuclear brightness.  The total
magnitude m1 could possibly reach 12-13 during November-December.


1977 January 28                (3034)              Brian G. Marsden

Read IAUC 3033 SEARCH Read IAUC 3035

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

Valid HTML 4.01!