Central Bureau for Astronomical Telegrams
IAUC 3596: SAO STAR CATALOG TAPES; N CrA 1981; SATURN'S E RING
The following International Astronomical Union Circular may be linked-to from your own Web pages, but must not otherwise be redistributed (see these notes on the conditions under which circulars are made available on our WWW site).
Read IAUC 3597
Circular No. 3596
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
SAO STAR CATALOG TAPES
The distribution of magnetic-tape copies of the SAO Star Catalog
is now being handled by the Central Bureau. The Catalog, containing
258 997 stars, is available on 9-track tapes at a cost of
$300.00 per copy. The data, consisting of a 152-byte record per
star and of 18 files corresponding to 10o declination zones, are
available in ASCII code on both labeled (ANSI standard) and unlabeled
tapes; unlabeled tapes in EBCDIC code can also be provided.
With a density of 1600 bpi and a block size of 15 200 bytes, the
Catalog fits on a single tape. If a density of 800 bpi and/or a
smaller block size must be used, further tapes will be required.
Orders should include specifications concerning the code and
whether or not the tape is to be labeled, and the density and block
size; if the block size of 15200 is too large, a block size of
4560 would normally be used. Checks should be made payable to the
Central Bureau for Astronomical Telegrams. Users are requested to
inform the Central Bureau of any errors they may find in the tape
or printed editions of the Catalog.
NOVA CORONAE AUSTRINAE 1981
N. Brosch and E. M. Leibowitz, Wise Observatory, cable: "Calibrated
spectrophotometric scans of the nova were obtained on Apr.
10.07 UT with the sky-subtracting digicon spectrometer. The main
emission features are the Balmer series, the C III-N III complex at
460 nm, He I 588 nm, lines of Fe II multiplet 42 and a broad emission
around 570 nm. The double-peaked Balmer lines have an fwhm of
4500 km/s; the stronger peak is shifted by +1750 km/s, the weaker
by -1050 km/s. The Balmer decrement is H-alpha:H-beta:H-gamma:H-zeta =
5.5:10:0.45:0.40."
SATURN'S E RING
B. A. Smith, Lunar and Planetary Laboratory, writes that observations
on Apr. 1 and 2 by S. M. Larson and J. W. Fountain showed
the E ring at an inclination of 5o.4 and indistinguishable from a
line source at 246 000 +/- 5000 km from Saturn's center. This is presumably
the bright core; the point-spread function limits the observed
width to 10 000 km or less. The ring was uniform in brightness
(except for the presence of 1981 S 1: see IAUC 3593) and was
easily recorded on all images taken on both nights.
1981 April 23 (3596) Brian G. Marsden
Read IAUC 3597
Our Web policy. Index to the CBAT/MPC/ICQ pages.
