146 Lucina
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| Discovery[1] and Designation | |
|---|---|
| Discovered by: | Alphonse Borrelly |
| Discovery date: | June 8, 1875 |
| Alternative names: [2] | |
| Minor planet category: | Main belt |
| Orbital characteristics[3] | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion distance: | 433.156 Gm (2.895 AU) |
| Perihelion distance: | 380.397 Gm (2.543 AU) |
| Semi-major axis: | 406.777 Gm (2.719 AU) |
| Eccentricity: | 0.065 |
| Orbital period: | 1637.739 d (4.48 a) |
| Avg. orbital speed: | 18.04 km/s |
| Mean anomaly: | 152.155° |
| Inclination: | 13.074° |
| Longitude of ascending node: | 84.177° |
| Argument of perihelion: | 143.509° |
| Physical characteristics | |
| Dimensions: | 132.2 km |
| Mass: | 2.4×1018 kg |
| Mean density: | 2.0 g/cm³ |
| Equatorial surface gravity: | 0.0369 m/s² |
| Equatorial Escape velocity: | 0.0699 km/s |
| Sidereal rotation period: | ? d |
| Axial tilt: | ?° |
| Pole ecliptic latitude: | ? |
| Pole ecliptic longitude: | ? |
| Geometric albedo: | 0.10 |
| Temperature: | ~169 K |
| Spectral type: | C |
| Absolute magnitude: | 8.20 |
146 Lucina is a main belt asteroid. It is large, dark and has a carbonaceous composition.
It was discovered by Alphonse Borrelly on June 8, 1875 and named after Lucina, the Roman goddess of childbirth.
Two stellar occultations by Lucina have been observed so far, in 1982 and 1989. During the first event, a possible small satellite (6 km in diameter) was detected.
Further evidence for a satellite emerged in 2003, this time based on astrometric measurements [4].
| Minor planets | ||
|---|---|---|
| Previous minor planet | 146 Lucina | Next minor planet |
| List of asteroids | ||
Vulcanoids · Near-Earth asteroids · Main belt · Jupiter Trojans · Centaurs · Damocloids · Comets · Trans-Neptunians (Kuiper belt • Scattered disc • Oort cloud)
For other objects and regions, see Asteroid groups and families, Binary asteroids, Asteroid moons and the Solar System.
For a complete listing, see List of asteroids. See also Pronunciation of asteroid names and Meanings of asteroid names.
