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IAUC 3871: N Nor 1983; 1983t; 1983 SA; 1983 RD

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                                                  Circular No. 3871
Central Bureau for Astronomical Telegrams
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

     R. Peterson telexes that echelle spectrograms obtained with
the 4-m telescope at the Cerro Tololo Interamerican Observatory on
Sept. 24.02 and 24.99 UT confirm that the object reported by W.
Liller on IAUC 3869 is a nova.  Broad (3000 km/s) Balmer emission
lines due to H-alpha, H-beta and H-gamma, plus several additional
features, are superposed on a faint continuum.  Interstellar Na D lines
are present with a width of 0.25 nm, along with similar lines of Ca II.

     The new comet announced on IAUC 3868 appears to be identical
with the object, presumed to be a minor planet, listed on MPC 8008
under the designation 1983 JG.  The discoverer of 1983 JG was
Zdenka Vavrova at the Klet Observatory, and her observations are
repeated here:

     1983 UT              R.A.   (1950.0)   Decl.       m2

     May  14.94676     15 30 46.04     -15 13 00.8     16.5
          14.97436     15 30 44.77     -15 12 53.5

1983 SA
     P. Wild, Astronomical Institute, Berne, reports his discovery
at Zimmerwald of a fast-moving asteroidal object as follows:

      1983 UT              R.A.   (1950.0)  Decl.       Mag.

      Sept.26.80035     22 58 49.85     +11 03 33.6     14
           28.78958     22 55 14.83     +12 21 02.6

1983 RD
     A. W. Harris, Jet Propulsion Laboratory, notes that the rotation
period of this object was still ambiguous (i.e., 4.90 or 2.45
hr) after further observations at Table Mountain Observatory on
Sept. 15.  The increasing peak-to-peak amplitude, > 0.10 mag,
compared to 0.07 mag (not +/- 0.07 mag as was stated on IAUC 3866) on
the preceding nights, suggests that the ambiguity can be resolved
during the forthcoming dark run.  The observations at Table
Mountain during Sept. 13-15 were made by J. Young.

1983 September 30              (3871)              Brian G. Marsden

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