(2289) McMillan
Asteroid (2289) McMillan |
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Properties of the orbit ( animation ) | |
Orbit type | Main belt asteroid |
Asteroid family | Misa family |
Major semi-axis | 2.6339 AU |
eccentricity | 0.1463 |
Perihelion - aphelion | 2.2485 AU - 3.0194 AU |
Inclination of the orbit plane | 2.155 ° |
Sidereal period | 4,275 a |
Mean orbital velocity | 18.352 km / s |
Physical Properties | |
Medium diameter | ? km |
Albedo | ? |
Rotation period | ? H |
Absolute brightness | 13.5 likes |
Spectral class | ? |
history | |
Explorer |
CJ and I. van Houten-Groeneveld , T. Gehrels |
Date of discovery | September 24, 1960 |
Another name | 6567 PL, 1933 FT, 1978 VZ 4 |
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. |
(2289) McMillan is an asteroid of the main belt that was discovered on September 24, 1960 by the Dutch research team Cornelis Johannes van Houten , Ingrid van Houten-Groeneveld and Tom Gehrels as part of the Palomar-Leiden Survey .
The name of the asteroid was chosen in honor of the American astronomer Robert S. McMillan , the project manager of the Spacewatch program.