26858 Misterrogers
26858 Misterrogers (/ˌmɪstər ˈrɒdʒərz/), provisional designation 1993 FR, is a stony asteroid and sizable Mars-crosser on an eccentric orbit from the asteroid belt, approximately 5.1 miles (8.2 kilometers) in diameter. It was discovered on March 21, 1993, by American astronomer Eleanor Helin at the Palomar Observatory in California. The likely S-type asteroid has a rotation period of 8.0 hours. It was named after children's television host Fred Rogers.
| Discovery | |
|---|---|
| Discovered by | E. F. Helin |
| Discovery site | Palomar Obs. |
| Discovery date | March 21, 1993 |
| Designations | |
MPC designation | (26858) Misterrogers |
| Pronunciation | /ˌmɪstər ˈrɒdʒərz/ |
Named after | Fred Rogers (Mister Rogers' Neighborhood) |
Alternative designations | 1993 FR · 1952 SU 2000 EK107 |
Minor planet category | Mars crosser |
| Orbital characteristics | |
| Epoch April 27, 2019 (JD 2458600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 65.65 yr (23,980 d) |
| Aphelion | 3.1490 AU |
| Perihelion | 1.5384 AU |
Semi-major axis | 2.3437 AU |
| Eccentricity | 0.3436 |
Orbital period (sidereal) | 3.59 yr (1,311 d) |
Mean anomaly | 164.80° |
Mean motion | 0° 16m 28.92s / day |
| Inclination | 21.874° |
Longitude of ascending node | 203.76° |
| 247.63° | |
| Earth MOID | 0.6692 AU (261 LD) |
| Physical characteristics | |
Mean diameter | 6.33±1.08 km 8.07±0.17 km 8.19±1.64 km |
Synodic rotation period | 8.066±0.007 h |
| 0.200 0.208 0.28 | |
| S (assumed) | |
| 12.80 12.9 | |
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