--Orbital and physical data--
(See this page for definitions of quantities; source codes in brackets, see this link for full references; *A, *D, and *E indicate assumed, derived, and estimated values, respectively.)
dynamical type, primary:
main belt asteroid
orbital data, primary (osculating elements) [JPL] :
orbital data, secondary:
other data, system (combined):|
other data, primary:
other data, secondary:
-- (1934) Jeffers --discovery and notes:
Primary discovered 1972 Dec 02 from Mount Hamilton by A. R. Klemola. Alternate designation(s): 1972 XB, 1951 AN1, 1961 YA, 2019 GT25. Linked to prediscovery observations from 1961 Dec 31. Permanent number assigned -.
Named 1976 Feb 20 for Hamilton M. Jeffers (1893-1976) [MPC003938].
Companion discovered 2020 Dec 19 by P. Pravec et al. using lightcurve observations from Astronomical Observatory of the University of Siena; Sugarloaf Mountain Observatory, South Deerfield, Massachusetts, USA; Skalnate Pleso Observatory; Shed of Science South Observatory, Pontotoc, Texas, USA; Blue Mountains Observatory, Leura, New South Wales, Australia. Announced 2021 Jan [P21h].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
by Wm. Robert Johnston.
Last modified 25 September 2021. Return to Home. Return to Astronomy and Space. Return to Asteroids with Satellites.