984 Gretia

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984 Gretia
984Gretia (Lightcurve Inversion).png
A three-dimensional model of 984 Gretia based on its light curve.
Discovery[1]
Discovered by K. Reinmuth
Discovery site Heidelberg
Discovery date 1922-08-27
Designations
Alternative names 1922 MH
Minor planet category Main belt Main belt
Orbital characteristics[1]
Epoch 2455000.5
(2009-Jun-18.0)
Aphelion 3.3545319 AU
Perihelion 2.2559173 AU
Semi-major axis 2.8052246 AU
Eccentricity 0.1958158
Orbital period 1716.1288367 day
4.70 year
Mean anomaly 154.84845°
Inclination 9.08580°
Longitude of ascending node 314.32814°
Argument of perihelion 55.88676°
Physical characteristics
Dimensions 31.91 km[1]
Sidereal rotation period 5.781 h[1]
Albedo 0.4239[1]
Spectral type Sr[1]
Absolute magnitude (H) 9.03[1]

984 Gretia is a main belt asteroid orbiting the Sun. It orbits about twice as far out as Mars and takes 4.7 years to orbit the Sun.[1]

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