| Discovery | |
|---|---|
| Discovered by | Paul Götz |
| Discovery date | 18 July 1904 |
| Designations | |
| (538) Friederike | |
| Pronunciation | German:[fʁiːdəˈʁiːkə][1] |
| 1904 OK | |
| Main belt (Hygiea family) | |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 111.70 yr (40800 d) |
| Aphelion | 3.6924 AU (552.38 Gm) |
| Perihelion | 2.6238 AU (392.51 Gm) |
| 3.1581 AU (472.45 Gm) | |
| Eccentricity | 0.16919 |
| 5.61yr (2049.9d) | |
| 275.237° | |
| 0° 10m 32.232s / day | |
| Inclination | 6.5204° |
| 141.173° | |
| 227.779° | |
| Physical characteristics | |
| 36.245±1.15km[2] 36 km[3] | |
Meandensity | ~1.4 g/cm3[4] |
| 1.1 d[5] 46.728 h (1.9470 d)[2] | |
| 0.0641[3] 0.0641±0.004[2] | |
| B-type asteroid[6] | |
| 9.5 | |
538 Friederike is aminor planet (anasteroid specifically) orbiting in the asteroid belt. It is a member of theHygiea family of asteroids.
Photometric observations at the Organ Mesa Observatory in New Mexico during 2012 showed arotation period of 46.728 ± 0.004 hours with a brightnessvariation of 0.25 ± 0.02 inmagnitude.[7]
_mathilde.jpg) | This article about an asteroid native to theasteroid belt is astub. You can help Wikipedia byexpanding it. |
