Central Bureau for Astronomical Telegrams
IAUC 2764: SMIRNOVA-CHERNYKH; CCO
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Circular No. 2764
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
COMET SMIRNOVA-CHERNYKH (l975e)
Dr. E. R. Mustel, Astronomical Council, U.S.S.R. Academy of
Sciences, cables that T. M. Smirnova and N. S. Chernykh, Crimean
Astrophysical Observatory, have discovered a comet, as follows.
The comet is diffuse, with condensation but no tail.
1975 UT R. A. (1950) Decl. m1 Observer
Mar. 4.77955 9 23.5 +23 52 15 Smirnova
16.83757 9 18.5 +24 03 15 Chernykh
30.80918 9 14.8 +24 00 15 "
CATALOGUE OF COMETARY ORBITS
A second edition of the Catalogue of Cometary Orbits has been
prepared and is again being issued as a special publication of the
Central Bureau. Orbital information is included for 964 cometary
apparitions (referring to 625 individual comets) observed up to
mid-March 1975. There are 40 more entries than in the 1972 edition
of the Catalogue, and in addition some 20 percent of the older
orbits have been corrected or otherwise improved. The main part of
the Catalogue lists the orbits in order of the date of perihelion
passage, and detailed information is given concerning the basis for
each orbit. Supplementary tables list the 102 short-period comets,
and there are also listings of the long-period comets according to
reciprocal semimajor axis, inclination and longitude of perihelion;
a new feature of the 1975 edition is that there are also listings
according to perihelion distance and the longitude of the ascending
node. Copies of the 83-page Catalogue can be purchased directly
from the Central Bureau. The price, including postage, is $3.00,
although persons outside North America who wish to receive the
Catalogue by airmail should remit an additional $2.00. Checks should
be made payable to the "Central Bureau for Astronomical Telegrams"
Subscribers - particularly those outside North America - to these
Circulars might find it convenient merely to inform us that they
wish to receive a copy (or copies) of the new Catalogue. We can
then simply deduct the appropriate amount from their Circulars
accounts; it should of course be noted that the "expiry No." for such
special subscribers will automatically be reduced, and regular
subscribers will in most instances receive their annual bills a month
or two earlier than in previous years.
1975 April 3 (2764) Brian G. Marsden
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