This article needs additional citations for
verification. (May 2016) |
![]() A three-dimensional model of 578 Happelia based on its light curve | |
Discovery | |
---|---|
Discovered by | M. F. Wolf |
Discovery site | Heidelberg |
Discovery date | 1 November 1905 |
Designations | |
(578) Happelia | |
1905 RZ | |
Orbital characteristics [1] | |
Epoch 31 July 2016 ( JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 110.46 yr (40344 d) |
Aphelion | 3.2821 AU (491.00 Gm) |
Perihelion | 2.2168 AU (331.63 Gm) |
2.7494 AU (411.30 Gm) | |
Eccentricity | 0.19374 |
4.56 yr (1665.2 d) | |
200.53 ° | |
0° 12m 58.284s / day | |
Inclination | 6.1525° |
29.411° | |
261.400° | |
Physical characteristics | |
34.645±1.05 km | |
10.061 h (0.4192 d) | |
0.0769±0.005 | |
9.4 | |
Happelia ( minor planet designation: 578 Happelia) is a minor planet orbiting the Sun. On 24 February 2017 a possible small 3-kilometer moon was found orbiting the asteroid, based on occultation observations. [2]
This article needs additional citations for
verification. (May 2016) |
![]() A three-dimensional model of 578 Happelia based on its light curve | |
Discovery | |
---|---|
Discovered by | M. F. Wolf |
Discovery site | Heidelberg |
Discovery date | 1 November 1905 |
Designations | |
(578) Happelia | |
1905 RZ | |
Orbital characteristics [1] | |
Epoch 31 July 2016 ( JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 110.46 yr (40344 d) |
Aphelion | 3.2821 AU (491.00 Gm) |
Perihelion | 2.2168 AU (331.63 Gm) |
2.7494 AU (411.30 Gm) | |
Eccentricity | 0.19374 |
4.56 yr (1665.2 d) | |
200.53 ° | |
0° 12m 58.284s / day | |
Inclination | 6.1525° |
29.411° | |
261.400° | |
Physical characteristics | |
34.645±1.05 km | |
10.061 h (0.4192 d) | |
0.0769±0.005 | |
9.4 | |
Happelia ( minor planet designation: 578 Happelia) is a minor planet orbiting the Sun. On 24 February 2017 a possible small 3-kilometer moon was found orbiting the asteroid, based on occultation observations. [2]