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IAUC 4182: PG 1115+080; (3361)

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IAUC number 

                                                  Circular No. 4182
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


PG 1115+080
     C. Christian, D. Crabtree and P. Waddell, Canada-France-
Hawaii Telescope, report the discovery of the lensing galaxy for
the triple quasar PG 1115+080.  The observations were made on Feb.
18 with the 3.6-m reflector, using a double-density RCA CCD at the
prime focus.  The galaxy, which is visible on the V and I frames
but not B, is located 0"31 east and 1"34 south of component C.
Preliminary measurements indicate that the galaxy has V = 21.3 and
V-I = +0.65.  Measurement of the twin A component indicates that
the northern component is 0.3 mag fainter than the southern
component in B.  This difference is reduced to 0.2 mag in I.


(3361) 1982 HR
     This newly-numbered Apollo object will make a close approach
to the earth in April.  The following ephemeris is from the
orbital elements on MPC 10379.

     1986 ET     R.A. (1950.0) Decl.      p        r       V

     Mar. 29    22 45.58    - 7 32.9
          31    22 23.25    - 8 15.4    0.075    0.938    20.5
     Apr.  2    21 59.20    - 8 54.3
           4    21 33.83    - 9 27.5    0.070    0.957    18.3
           6    21 07.62    - 9 53.3
           8    20 41.14    -10 10.6    0.069    0.977    17.0
          10    20 14.97    -10 19.3
          12    19 49.63    -10 19.7    0.071    0.997    16.3
          14    19 25.49    -10 13.2
          16    19 02.84    -10 01.2    0.075    1.018    15.9
          18    18 41.78    - 9 45.4
          20    18 22.37    - 9 27.2    0.082    1.039    15.7
          22    18 04.54    - 9 07.9
          24    17 48.22    - 8 48.4    0.092    1.060    15.6
          26    17 33.29    - 8 29.4
          28    17 19.62    - 8 11.4    0.102    1.082    15.7
          30    17 07.10    - 7 54.7
     May   2    16 55.61    - 7 39.6    0.115    1.103    15.7
           4    16 45.06    - 7 26.4
           6    16 35.39    - 7 15.0    0.129    1.124    15.8
           8    16 26.52    - 7 05.5
          10    16 18.40    - 6 58.0    0.144    1.145    15.9


1986 February 27               (4182)              Brian G. Marsden

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