127 Johanna
From Wikipedia, the free encyclopedia
| Discovery | |
|---|---|
| Discovered by: | Paul Henry and Prosper Henry |
| Discovery date: | November 5, 1872 |
| Alternative names: | |
| Minor planet category: | Main belt |
| Orbital characteristics | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion distance: | 438.576 Gm (2.932 AU) |
| Perihelion distance: | 385.859 Gm (2.579 AU) |
| Semi-major axis: | 412.218 Gm (2.756 AU) |
| Eccentricity: | 0.064 |
| Orbital period: | 1670.707 d (4.57 a) |
| Avg. orbital speed: | 17.92 km/s |
| Mean anomaly: | 36.831° |
| Inclination: | 8.245° |
| Longitude of ascending node: | 31.448° |
| Argument of perihelion: | 91.496° |
| Physical characteristics | |
| Dimensions: | ? km |
| Mass: | ?×10? kg |
| Mean density: | ? g/cm³ |
| Equatorial surface gravity: | ? m/s² |
| Escape velocity: | ? km/s |
| Rotation period: | ? d |
| Albedo: | ? |
| Temperature: | ~168 K |
| Spectral type: | ? |
| Absolute magnitude: | 8.3 |
127 Johanna is a large Main belt asteroid. It has a very dark surface and probably a primitive composition of carbonates. It was discovered by P. M. Henry on November 5, 1872 and is believed to be named after Joan of Arc.
| Minor planets | ||
|---|---|---|
| Previous minor planet | 127 Johanna | 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.
