Discovery | |
---|---|
Discovery date | 19 March 1999 |
Designations | |
MPC designation | 11409 |
Named after
|
Jack Horkheimer |
1999 FD9 | |
Orbital characteristics | |
Epoch 13 January 2016 (JD 2457400.5) | |
Uncertainty parameter 0 | |
Observation arc | 10191 days (27.90 yr) |
Aphelion | 3.5665385 AU (533.54657 Gm) |
Perihelion | 2.8162184 AU (421.30028 Gm) |
3.191378 AU (477.4234 Gm) | |
Eccentricity | 0.1175542 |
5.70 yr (2082.4 d) | |
330.93436° | |
0° 10m 22.356s / day | |
Inclination | 2.298708° |
115.95379° | |
75.44493° | |
Earth MOID | 1.81721 AU (271.851 Gm) |
Jupiter MOID | 1.3917 AU (208.20 Gm) |
Jupiter Tisserand parameter | 3.185 |
Physical characteristics | |
12.8 | |
11409 Horkheimer (1999 FD9) is a main-belt asteroid discovered March 19, 1999, by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station. It is named in honor of Jack F. Horkheimer (1938 - 2010), former executive director of the Miami Space-Transit Planetarium, who is best known as the creator and host of the television program Jack Horkheimer: Star Gazer.