Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 4132: 1985 TB; RR Lyr Var IN M31 HALO

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 4131 SEARCH Read IAUC 4133
IAUC number 

                                                  Circular No. 4132
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
TWX 710-320-6842 ASTROGRAM CAM    Telephone 617-495-7244/7440/7444


1985 TB
     Further precise positions have been reported as follows:

   1985 UT           R.A.  (1950.0)   Decl.    Mag.   Observer

   Oct. 20.28125    1 13 37.82   +10 13 44.3   15.5   Bus
        20.33264    1 13 27.46   +10 16 04.9            "
   Nov.  8.08689    0 01 17.37   +26 25 03.6          Schwartz
         9.05158   23 57 20.85   +27 14 39.3          Shao

S. J. Bus (Lowell Observatory, Anderson Mesa Station).  0.33-m
   photographic telescope.  Correction to IAU 4127.
G. Schwartz and C.-Y. Shao (Oak Ridge Obs.).  1.5-m reflector.

     Improved orbital elements from 8 observations Oct. 14-Nov. 9:

         T = 1986 Jan. 2.0546 ET
     Peri. =  66.8280                    e =   0.572888
     Node  =  23.3901   1950.0           a =   2.611864 AU
     Incl. =  27.0280                    n =   0.2334953
         q =   1.115558 AU               P =   4.221 years

     1985 ET     R.A. (1950.0) Decl.      p        r      Mag.

     Nov. 16    23 29.88    +32 51.5
          21    23 11.83    +36 28.8    0.392    1.227    15.9
          26    22 55.67    +39 45.6
     Dec.  1    22 41.52    +42 45.0    0.422    1.182    16.2
           6    22 29.35    +45 30.9
          11    22 19.05    +48 07.5    0.456    1.148    16.4
          16    22 10.44    +50 38.5
          21    22 03.29    +53 07.2    0.488    1.125    16.6
          26    21 57.39    +55 36.0
          31    21 52.58    +58 06.8    0.515    1.116    16.7


RR LYRAE VARIABLE IN M31 HALO
     C. J. Pritchet, University of Victoria; and S. van den Bergh,
Dominion Astrophysical Observatory, report the discovery of an RR
Lyr variable in the halo of M31.  The object has been studied on
16 CCD frames, obtained with the Canada-France-Hawaii telescope in
subarcsec seeing, of a field located 40' southeast of the nucleus
of the galaxy.  The variable has a mean magnitude slightly below B
= 25, an amplitude of 1.5 mag and a period of 0.599 +/- 0.008 day.


1985 November 12               (4132)              Brian G. Marsden

Read IAUC 4131 SEARCH Read IAUC 4133

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

Valid HTML 4.01!