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IAUC 3422: 1979 VA; X-RAY N IN Sgr; INTERSTELLAR C2

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IAUC number 

                                                  Circular No. 3422
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


1979 VA
     Eleanor Helin, California Institute of Technology, reports the
discovery of a fast-moving asteroidal object on exposures with the
0.46-m Schmidt telescope at Palomar as follows:

     1981 UT          R. A. (1950) Decl.      Mag.
     Nov. 15.16875    1 30.0     +25 12       11
          15.42500    1 32.0     +25 10
          16.10347    1 37.4     +25 04       11


X-RAY NOVA IN SAGITTARIUS
     L. Kaluzienskl and S. Holt, Goddard Space Flight Center, report
the detection of a novalike outburst from a source in Sagittarius.
The increase apparently commenced during Ariel-5 all-sky-monitor
fine-mode observations of this region on Oct. 26, the 3-6-keV
flux rising from a level of < 0.1 Crab on that date to ~ 0.5
Crab early on the 29th.  Upper limits of ~ 0.07 Crab were obtained
during fine-mode observations conducted during Oct. 18-20.  The
source is located at R.A. = 18h28m, Decl. = -24o.3 (equinox 1950.0), with a
90-percent-confidence error-circle radius of ~ 2o.  The source was
still bright when last observed on Nov. 4.  It should be noted that
the weak source 4U 1831-23 is located within the outer region of
the error circle and thus cannot be excluded as the origin of the
outburst.


INTERSTELLAR C2
     C. B. Cosmovici, Max-Planck-Institut fur Extraterrestrische
Physik; and F. Strafella, Asiago Astrophysical Observatory, report
the detection of C2 in absorption toward nu Cyg, zeta Oph, xi Peg and xi
Per [Phillips 2-0 band, R(0) 876.0 nm, R(12) 875.9 nm] and in VI
Cyg No. 12 = Hiltner 992 (Ap. J. Suppl. 1956, 2, 389) and omicron And
[Q(2) 876.3 nm, R(0), R(12) and R(2) 875.6 nm].  Observations were
made with a tilting Fabry-Perot spectrophotometer mounted at the
1.82-m Asiago telescope (resolving power 10**4).  The strong C2
emission around 875.8 nm in T Lyr was used for calibration.
Preliminary column densities are of the order of 10**17 m**-2.


1979 November 16               (3422)              Brian G. Marsden

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