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IAUC 4180: NOVALIKE OBJECT IN Cen; OH MEGAMASER IN III ZWICKY 35; 1986a

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                                                  Circular No. 4180
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


NOVALIKE OBJECT IN CENTAURUS
     W. Liller, Instituto Isaac Newton, Vina del Mar, reports his
discovery of a novalike object at R.A. = 13h17m40s, Decl. = -55deg34'9
(equinox 1950.0, uncertainty 20"), 2'6 south of SAO 240765.
Magnitudes (2415 film plus orange filter): Jan. 3.30 UT, 10.9; 9.30,
10.8; 13.26, 7.5; 17.24, 8.5; Feb. 3.34, 12.5; 11.20, [12.5;
17.28, [12.5 (uncertainty 0.2 mag on Jan. 3 and 9, 0.5 mag later).
The Papadopoulos atlas shows a mag 14 star near the position.


OH MEGAMASER IN III ZWICKY 35
     J. M. Chapman, R. J. Cohen, L. Pointon, L. Staveley-Smith and
S. W. Unger, Nuffield Radio Astronomy Laboratories, University of
Manchester, communicate: "In an OH survey of IRAS galaxies with
the Jodrell Bank Mk IA radio telescope and a new wideband acoustooptic
spectrometer we have discovered powerful maser emission from
the compact galaxy III Zw 35 (= IRAS 01418+1651).  The 1667-MHz
line has a recession velocity of 8270 km/s, a linewidth of 115
km/s and an isotropic luminosity of 440 LO (assuming a distance of
110 Mpc).  The maser has a 1667-MHz/1665-MHz line ratio of 10 and
an infrared pumping efficiency of at least 24, both substantially
higher than other megamasers."


PERIODIC COMET SHOEMAKER 3 (1986a)
     The following orbital elements have been derived by S.
Nakano, Tokyo, from 46 observations Jan. 10-Feb. 12.

         T = 1985 Dec. 18.6056 ET
     Peri. =  14.8422                    e =   0.727579
     Node  =  96.6297   1950.0           a =   6.585892 AU
     Incl. =   6.4076                    n =   0.0583153
         q =   1.794136 AU               P =  16.90 years

     1986 ET     R.A. (1950.0) Decl.      p        r       m1

     Mar. 11     9 30.13    +25 00.2    1.101    2.003    13.7
          21     9 33.48    +24 31.9
          31     9 39.18    +23 45.2    1.325    2.104    14.3
     Apr. 10     9 46.92    +22 43.8
          20     9 56.36    +21 31.0    1.606    2.218    15.0
          30    10 07.10    +20 09.4
     May  10    10 18.81    +18 41.0    1.926    2.341    15.6


1986 February 20               (4180)              Brian G. Marsden

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