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IAUC 3136: 1977 VA; 1977 VB; 1977p; HD 193793

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IAUC number 

                                                  Circular No. 3136
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Cable Address: SATELLITES, NEWYORK     Telex: 921428
Telephone: (617) 864-5758


1977 VA
     The following precise positions have been measured by S. J.
Bus (assisted by D. Zelinsky) from exposures by E. Helin, E.
Shoemaker and himself at Palomar (D. Richstone and T. Boroson
should have been mentioned on IAUC 3133 as assisting R. Green):

     1977 UT             R. A. (1950) Decl.
     Nov.  9.31111     2 26 27.71   +13 56 50.0
          10.33628     2 29 48.28   +13 48 17.7


1977 VB
     Computations by the undersigned from observations by Helin et
al. suggest that this object (cf. IAUC 3133) is a Mars-crosser of
Phocaea type (a = 2.4 AU, e = 0.38, i = 27o).  A brief ephemeris
follows (equinox 1950.0): Nov. 13, R.A. = 1h16m.3, Decl. = +6o40'; 23,
1h25m.8, + 0o27'; Dec. 3, 1h37m.1, -3o50'; 13, 1h50m.0, -6o28'.


PERIODIC COMET SANGUIN (1977p)
     C. Torres, University of Chile, communicates the following
precise positions from plates taken by S. Barros and himself at the
Cerro El Roble Station.  Measurer: M. Wischnjewsky.  On Oct. 11 the
comet's image consisted of a trail 15" x 5" with a faint tail extending
20" northeastward.  The comet was much fainter on Oct. 19.

     1977 UT             R. A. (1950) Decl.        m1
     Oct. 11.08158    22 24 03.94   - 6 15 29.0  13-14
          19.09873    22 32 56.01   - 8 07 10.4   16
          19.11817    22 32 57.60   - 8 07 23.7


HD 193793
     F. Ciatti and A. Vittone, Asiago Astrophysical Observatory,
write that they obtained intermediate-dispersion spectrograms of
this WR binary (cf. IAUC 3107) with the 120-cm reflector on Oct. 3
and 4.  The spectrograms cover 3800-10 900 A, and comparison with
similar records obtained between 1959 and 1972 shows no evident
changes of the spectral features in the blue to near-infrared.


1977 November 14               (3136)              Brian G. Marsden

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