Central Bureau for Astronomical Telegrams
IAUC 3599: 1981d; Occn OF BD -19 4222 BY URANUS; N CrA 1981; 1980 YS
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 3600
Circular No. 3599
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
COMET BUS (1981d)
S. J. Bus, California Institute of Technology, provides the
following precise measurements for the observations made at Palomar
and reported on IAUC 3598:
1981 UT R. A. (1950) Decl. Observer
Apr. 26.32361 15 26 34.12 - 6 46 02.3 Bus
28.29444 15 18 15.53 - 6 26 03.1 Kowal
OCCULTATION OF BD -19 4222 BY URANUS
M. K. Bappu, Indian Institute of Astrophysics; and W. Liller,
Harvard College Observatory, report that the Apr. 26 occultation of
BD -19 4222 by Uranus (cf. Klemola et al. 1981, A.J. 86, 138) was
successfully observed with the 0.8-m and 1.0-m reflectors at the
Kavalur Observatory. While scattered clouds hampered observations
of the early portion of the event, clearing skies permitted positive
identification of the epsillon-ring occultation at 20h38m37s UT and
probably of several other occultations also.
M. C. Pande, Uttar Pradesh State Observatory, reports that the
occultation by Uranus was successfully observed at Naini Tal by
H. S. Mehra, A. K. Pande Vijaymohan and U. C. Joshi using a 1.0-m
reflector with EMI 9658 multiplier and a filter combination having
a peak response wavelength of 750 nm. The occultation lasted for
19.9 min centered at 19h54m.4 UT. Occultations by the epsillon ring were
recorded at 19h18m42s and 20h28m15s UT and were of durations 5s and
3s, respectively.
NOVA CORONAE AUSTRINAE 1981
N. W. Feast, South African Astronomical Observatory, telexes
that observations made at Sutherland by Spencer Jones, Carter and
Catchpole during Apr. 8-12 show Nova CrA 1981 to have an unusually
negative J-H value, changing from -0.54 to -0.95 during this period,
as J changed from 6.83 to 8.18; this may indicate strong line emission
in J. On Apr. 20 the color H-K was +0.62.
1980 YS
Corrigendum. On IAUC 3579, last line, R.A. should be 9h43m46s.
1981 May 1 (3599) Brian G. Marsden
Read IAUC 3600
Our Web policy. Index to the CBAT/MPC/ICQ pages.
