Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 2771: BRADFIELD; NEPTUNE II (NEREID)

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 2770 SEARCH Read IAUC 2772
IAUC number 

                                                  Circular No. 2771
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
Western Union: RAPID SATELLITE CAMBMASS


COMET BRADFIELD (l975d)
     The following precise positions have been reported:

     1975 UT             R. A. (1950) Decl.        m1    Observer
     Mar. 21.40486     1 41 17.45   -20 57 20.8          Herald
     Apr.  4.32465     2 40 42.32   -18 13 21.8    9.0   Kilmartin
           4.33793     2 40 45.91   -18 13 12.0            "
           5.32604     2 45 07.83   -17 58 56.0            "

D. Herald (Woden, near Canberra).
Pamela M. Kilmartin (Carter Observatory).  41-cm reflector on Apr.
   4, 10-cm astrograph on Apr. 5 (through cloud).  The Apr. 4
   plates show a diffuse central condensation of 20" by 40" (and
   m2 ~ 11) elongated toward p.a. 170o.


NEPTUNE II (NEREID)
     Dr. K. Aksnes, Center for Astrophysics, Harvard and Smithsonian
Observatories, provides the following continuation to the
ephemeris on IAUC 2665:

     1975 ET     R. A. (1950) Decl.   dR.A. cos Decl. dDecl.
     Apr. 28    16 38.28    -20 29.2      - 74"9      + 58"7
     Nay   8    16 37.30    -20 27.0      - 92.6      + 60.0
          18    16 36.22    -20 24.7      -109.8      + 60.9
          28    16 35.08    -20 22.4      -126.2      + 61.3
     June  7    16 33.91    -20 20.1      -141.3      + 61.3
          17    16 32.78    -20 17.9      -154.9      + 60.7
          27    16 31.71    -20 16.0      -166.5      + 59.4
     July  7    16 30.75    -20 14.3      -175.8      + 57.4
          17    16 29.93    -20 13.0      -182.1      + 54.6
          27    16 29.28    -20 12.1      -184.8      + 50.7
     Aug.  6    16 28.83    -20 11.8      -183.1      + 45.6
          16    16 28.60    -20 11.9      -175.2      + 39.0
          26    16 28.60    -20 12.6      -158.5      + 30.5
     Sept. 5    16 28.85    -20 13.8      -126.9      + 19.3
          15    16 29.36    -20 15.6      - 64.9      +  3.8
          25    16 30.15    -20 17.8      + 40.9      - 11.6
     Oct.  5    16 31.09    -20 20.2      +109.2      - 13.7


1975 April 23                  (2771)              Brian G. Marsden

Read IAUC 2770 SEARCH Read IAUC 2772

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

Valid HTML 4.01!