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Catalogues

Minor Planet Designation	3361 Orpheus
Asteroid Group	Apollo group
Asteroid Family	Not applicable
Composition Class	Q-type (sometimes classed as V-type)
Orbital Period	1.33 years
Distance from the Sun	Semi-Major Axis: 180,923,664 km (1.21 AU) Perihelion: 122,507,031 km (0.82 AU) Aphelion: 239,340,296 km (1.60 AU)
Eccentricity	0.3228
Diameter (Mean)	300 metres
Notes	As a member of the Apollo Group, Orpheus' orbit carries it through the inner Solar System, intersecting the orbits of Venus, Earth and Mars. In 2013 it passed within some 15 million kilometres of Earth, and its nearest theoretical approach is closer still: just over two million kilometres.

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