Central Bureau for Astronomical Telegrams
IAUC 2286: INTERSTELLAR FORMIC ACID; BD +19 2254; 1969b
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Circular No. 2286
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
Western Union: RAPID SATELLITE CAMBMASS
INTERSTELLAR FORMIC ACID
B. Zuckeman, University of Maryland, J. A. Ball and C. A.
Gottlieb, Harvard College Observatory, and H. E. Radford, Smithsonian
Astrophysical Observatory, report: "Formic acid (HCOOH) has
been detected at 18 cm in the direction of the galactic center with
the 140-foot (43-m) telescope of the National Radio Astronomy
Observatory. The line rest frequency for the l(1,1)-l(1,0) transition is
1638.805 +/- 0.005 MHz, so that it falls between the two Delta-F = 0
transitions of 18OH. The line was observed in emission at a velocity
of approximately 60 km/s in the direction of Sgr B2. An emission
line at 40 km/s was probably observed in Sgr A. The line antenna
temperature in Sgr B2 is about 0.05K, which corresponds to 0.2
f.u. if the source is small. These numbers are tentative because
the presence of 18OH in the spectral window complicates the analysis.
Confirmation of the identification of the emission line with
HCOOH must await detection of another transition."
BD +19 2254
Mr. H. Povenmire, Titusville, Florida, writes: "Reduction of
the grazing occultation of BD +19 2254 (= ZC 1436 = SAO 098750) on
1967 September 30 indicates that this star is a previously undetected
binary. In addition, the position of the star is approximately
0".4 south of the position indicated in the FK4 Catalog. The
magnitude of the primary is estimated at 7.0 and that of the
secondary at about 8.0. The spectral class of the secondary is
thought to be K0, or very similar to that of the primary. The position
angle of the secondary cannot be accurately determined but
is likely to be close to 80o. The separation is much less than
1".0 but possibly within the range of a large instrmment. This
observation was made with the cooperation of the Mt. Diablo
Astronomical Society using the Borde Cable."
COMET KOHOUTEK (1969b)
T. Urata, Nihondaira Observatory, sends positions as follows:
1970 UT R. A. (1950) Decl. m1
Feb. 2.82760 20 00 04.50 +46 57 34.0 10
2.83618 20 00 06.06 +46 57 45.8
1970 October 30 (2286) Brian G. Marsden
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