(757) Portlandia

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(757) Portlandia
Properties of the orbit ( animation )
Orbit type Main belt asteroid
Major semi-axis 2.3736  AU
eccentricity 0.1089
Perihelion - aphelion 2.1152 AU - 2.6321 AU
Inclination of the orbit plane 8.168 °
Sidereal period 3,657 a
Mean orbital velocity 19.33 km / s
Physical Properties
Medium diameter 32.1 km
Albedo 0.1427
Rotation period 6.58 h
Absolute brightness 10,023 mag
Spectral class M.
Explorer JH Metcalf
Date of discovery 1908
Another name 1908 EJ
Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items.

(757) Portlandia is an asteroid of the main belt , which on 30 September 1908 by American astronomer Joel H. Metcalf in Taunton was detected.

The asteroid was named after the city of Portland in the US state of Maine .

See also