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3361 Orpheus


3361 Orpheus

Discovered by Carlos Torres
Discovery site Cerro El Roble
Discovery date April 24, 1982
MPC designation 3361
Named after
1982 HR
Orbital characteristics
Epoch May 14, 2008
Aphelion 1.600 AU
Perihelion 0.819 AU
1.209 AU
Eccentricity 0.323
485.818 d
Inclination 2.685°
Physical characteristics
Dimensions 0.3 km
Sidereal rotation period
3.58 h

3361 Orpheus (1982 HR) is an Apollo asteroid that was discovered on April 24, 1982 by Carlos Torres at Cerro El Roble Astronomical Station. Its eccentric orbit crosses that of Mars and Earth, and approaches Venus as well. From 1900 to 2100 it passes closer than 30 Gm to Venus 11, Earth 33, and Mars 14 times.

It was calculated that it passed by Earth at a distance of about 40 lunar distances on December 7, 2013.[1]


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External links

  • JPL Small-Body Database Browser on 3361 Orpheus
  • SOLEX (approach predictions)
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