(30785) Grill ( lat. Greeley ) - an asteroid belonging to the group of asteroids crossing the orbit of Mars . It was discovered on August 13, 1988 by American astronomers Carolyn Shoemaker and Eugene Shoemaker at the Palomar Observatory and named after the American planetologist Robert Grill.
| (30785) Grills | |
|---|---|
| Asteroid | |
| Opening | |
| Discoverer | Carolyn Shoemaker , Eugene Shoemaker |
| Place of discovery | Palomar |
| Discovery date | August 13, 1988 |
| Alternative notation | 1988 PX |
| Category | Mars Crossers |
| Orbital characteristics | |
| Age of July 31, 2016 JD 2457600.5 | |
| Eccentricity ( e ) | 0.3442964 |
| Semimajor axis ( a ) | 329.349 million km (2,2015593 AU ) |
| Perihelion ( q ) | 215.955 million km (1.4435704 AU) |
| Aphelion ( Q ) | 442.742 million km (2.9595482 AU) |
| Circulation Period ( P ) | 1,193.147 days (3.267 g. ) |
| Average orbital speed | 19,464 km / s |
| Inclination ( i ) | 5,40277 ° |
| Longitude node (Ω) | 13.41164 ° |
| Perihelion Argument (ω) | 203.48035 ° |
| Median Anomaly ( M ) | 308.88240 ° |
| physical characteristics | |
| Diameter | 1 - 3 km |
| Apparent magnitude | 21.24 m (current) |
| Absolute magnitude | 16.5 m |
| Current distance from the sun | 2.107 a. e. |
| Current distance from earth | 2,622 a. e. |
The orbit of the asteroid Grill and its position in the solar system
See also
- List of asteroids ( 30701-30800 )
- Classifications of Minor Planets