Asteroid Citations

Published in the 2000 Jan 24 " Minor Planet Circulars"

(11823) Christen = 1981 VF Discovered 1981 Nov. 2 by B. A. Skiff at the Anderson Mesa Station of the Lowell Observatory. Roland W. Christen (b. 1944) is an optician and maker of affordable apochromatic refractors at the forefront of mechanical and optical design. The citation was provided by Sue and Alan French.

(10715) Nagler = 1983 RL4 Discovered 1983 Sept. 11 by B. A. Skiff at the Anderson Mesa Station of the Lowell Observatory. Al Nagler (b. 1935) is an optical designer best known for his innovative wide-field eyepieces and versatile, compact refractors. He also designed visual displays for the Gemini and Apollo Lunar Module simulators. The citation was provided by Sue and Alan French.

Where are these asteroids?

This information was provided by Brian Skiff.

Ephemerides for these objects can be obtained using either the Lowell or MPC Web sites: http://asteroid.lowell.edu/cgi-bin/koehn/asteph http://cfa-www.harvard.edu/iau/MPEph/MPEph.html

Positions as of February 16, 2000

(10715) Nagler is presently about magnitude 18.5 in Aquila, just coming up in the pre-dawn sky. It is in the Maria family of asteroids, with semimajor axis near 2.6 AU, eccentricity of 0.27, and inclination of 17.5 degrees.

(11823) Christen is similarly faint and close to the Sun at the moment, but low in the west in Aries at dusk. Although it is not a member of a well-defined dynamical family, itís semimajor axis is about 2.4 AU, eccentricity is 0.25 and inclination is 4.9 degrees.

Brian commented in a recent posting: " is appropriate to their namesakes that both objects are " somewhat eccentric."