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IAUC 4014: 1984u; 1984t; 1984L; LFT 349

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                                                  Circular No. 4014
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 617-495-7244/7440/7444

     Carolyn and Eugene Shoemaker report their discovery of yet
another new comet on exposures with the Palomar 0.46-m Schmidt:

     1984 UT             R.A.   (1950.0)   Decl.        m1

     Nov. 21.32708      3 05 39.47     +18 16 51.2     14.5
          21.34444      3 05 38.12     +18 17 31.5

The object is diffuse with a strong condensation and possibly a
short tail to the northeast.

     Total visual magnitude estimates: Nov. 13.42 UT, 12 (H. Mori,
Mukegawa, Gifu, 0.31-m reflector, 45x; independent discovery);
14.42, 12 (Mori; thin clouds); 17.01 UT, 9.6 (J. DeYoung, Alexandria,
VA, 0.15-m reflector); 18.15, 9.8 (A. Hale, Whitaker Peak,
CA, 0.20-m reflector); 20.10, 9.6 (D. Machholz, San Jose, CA,
0.15-m reflector); 22.14, 9.8 (Machholz, 0.25-m reflector).

     B. Margon, University of Washington, and R. A. Downes,
University of California at Los Angeles, report that seven spectra of
this object, extending over a 60-day period commencing Sept. 3,
confirm it to be a peculiar type I supernova remarkably similar to
supernova 1983N in M83 (cf. IAUC 4008).  The spectra strongly
resemble those of the latter object in the unpublished data of
Panagia, Kirshner, et al.

LFT 349
     W. Krzeminski, Las Campanas Observatory, Carnegie Institute
of Washington, writes: " The high proper motion Luyten degenerate
LFT 349 = LHS 1660 (R.A. = 4h19m6, Decl. = -48deg46', equinox 1950.0;
V = 14.4) has been found to be a detached eclipsing binary.  The first
eclipse was observed on Aug. 15.4156 UT.  The orbital period is
7.289 hr, the total phase is 3.3 mag deep in the B band and lasts
10 min, and ingress and egress each take 100 s.  During totality
only the spectrum of a dMe star is seen, and its radial-velocity
amplitude throughout the orbit is 370 km/s.  The primary had been
classified as a DAwk white dwarf (Wegner 1975, MNRAS 171, 637)."

1984 November 27               (4014)              Brian G. Marsden

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