Central Bureau for Astronomical Telegrams
IAUC 5399: 1991 XB; R CrB
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 5400
Circular No. 5399
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM EASYLINK 62794505
MARSDEN or GREEN@CFA.BITNET MARSDEN or GREEN@CFAPS2.SPAN
1991 XB
A fast-moving asteroidal object has been discovered by C. S.
Shoemaker on exposures by E. M. Shoemaker, D. H. Levy, and herself
with the 0.46-m Palomar Schmidt. The following precise positions
have been measured by B. A. Skiff at the Lowell Observatory:
1991 UT R.A. (1950) Decl. Mag.
Dec. 1.31197 3 37 51.86 +25 10 57.7 16.2
1.34427 3 37 56.10 +25 08 56.6
3.30885 3 42 35.77 +23 04 43.2 16.2
3.34131 3 42 39.99 +23 02 39.7
6.23298 3 49 20.34 +20 02 51.6
6.24322 3 49 21.52 +20 02 18.0 16.5
6.37344 3 49 37.71 +19 54 18.7
Orbital elements by E. Bowell, Lowell Observatory, from six of
the above observations:
T = 1991 Nov. 26.779 ET Peri. = 171.682
e = 0.60752 Node = 249.976 1950.0
q = 1.25928 AU Incl. = 16.577
a = 3.20852 AU n = 0.171493 P = 5.75 years
1991 ET R.A. (1950) Decl. Delta r V
Nov. 30 3 34.70 +26 34.3 0.278 1.260 15.4
Dec. 5 3 46.52 +21 19.1
10 3 57.65 +16 19.3 0.294 1.269 15.7
15 4 08.12 +11 49.6
20 4 18.02 + 7 58.2 0.331 1.289 16.2
25 4 27.40 + 4 47.7
30 4 36.37 + 2 16.8 0.387 1.320 16.8
R CORONAE BOREALIS
Photoelectric measurements by D. Bohme, Nessa, Germany (cf.
IAUC 5379): Nov. 6.73, V = 6.30, B-V = +0.63; 10.74, 6.29, +0.76;
15.71, 6.48, +0.67; 21.70, 6.55, +0.65; 24.70, 6.70, +0.80; 26.69,
6.71, +0.88.
1991 December 9 (5399) Daniel W. E. Green
Read IAUC 5400
Our Web policy. Index to the CBAT/MPC/ICQ pages.
