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IAUC 3424: SN IN ESO 153-G27; tau Cet; SS 433; 1979i

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IAUC number 

                                                  Circular No. 3424
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 617-864-5758


SUPERNOVA IN ESO 153-G27
     J. Maza, Department of Astronomy, University of Chile, reports
the discovery of a supernova 6" west and 15" north of the nucleus
of ESO 153-G27 (R.A. = 2h08m48s, Decl. = -54o04'.3, equinox 1950.0).
Photographic magnitudes: Aug. 19.338 UT, 18-18.5; Sept. 16.277, 19; Oct.
15.168, 20.5.


tau CETI
     B. Campbell, Canada-France-Hawaii Telescope Corporation, reports
that spectrophotometry of tau Cet (G8V) with the University of
British Columbia's reticon detector at the Mauna Kea Observatory's
2.2-m telescope showed an emission event at Ca II 866.2 nm on Sept.
9.  Spectra obtained at 0.02-nm resolution showed a rising core
emission feature in the last 2-3 hours of the night.  Besides the
prominent core emission reversal (maximum equivalent width ~ 0.01
nm) the wings of Ca II are also filled in.  Single spectra on Sept.
10 and Oct. 8 showed no peculiar features.


SS 433
     J. C. Kemp, University of Oregon, informs us that the fourth
sentence on IAUC 3421 should be changed as follows: "A best
interpolated epoch for light minimum is 1979 Sept. 14.23 UT.  Our period
is best given as 6.45 +/- 0.07 days, which is consistent with half
the Crampton-et-al. period of 13.08 +/- 0.07 days."


COMET MEIER (1979i)
     The following ephemeris continuation is from new orbital
elements to be published on MPC 5031; see also MPC 5039-5040.

     1979 ET     R. A. (1950) Decl.     Delta     r      m1
     Dec.  3    11 35.30    +52 57.9    1.108   1.588   11.7
           8    11 17.07    +52 29.9
          13    10 55.71    +51 52.7    1.017   1.650   11.7
          18    10 31.22    +50 58.7
          23    10 04.05    +49 39.2    0.945   1.721   11.7
          28     9 35.17    +47 46.6
     Jan.  2     9 06.00    +45 16.9    0.909   1.798   11.8


1979 November 19               (3424)              Brian G. Marsden

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