Discovery | |
---|---|
Discovered by | Paul Götz |
Discovery site | Heidelberg |
Discovery date | 8 January 1905 |
Designations | |
(554) Peraga | |
Pronunciation | Italian: [peˈraːɡa] |
1905 PS | |
Orbital characteristics [1] | |
Epoch 31 July 2016 ( JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 115.51 yr (42190 d) |
Aphelion | 2.7391 AU (409.76 Gm) |
Perihelion | 2.0095 AU (300.62 Gm) |
2.3743 AU (355.19 Gm) | |
Eccentricity | 0.15364 |
3.66 yr (1336.3 d) | |
215.70 ° | |
0° 16m 9.84s / day | |
Inclination | 2.9349° |
295.434° | |
127.356° | |
Physical characteristics | |
Mean radius | 47.935±2.05
km
[1] 48.23 ± 0.84 km [2] |
Mass | (6.59 ± 0.66) × 1017 kg [2] |
Mean
density | 1.40 ± 0.15 g/cm3 [2] |
13.7128 h (0.57137 d) | |
0.0496±0.005 | |
9.1 | |
Peraga ( minor planet designation: 554 Peraga) is a minor planet orbiting the Sun that was discovered by German astronomer Paul Götz on January 8, 1905, from Heidelberg.
13-cm radar observations of this asteroid from the Arecibo Observatory between 1980 and 1985 were used to produce a diameter estimate of 101 km. [3]