424 Gratia

424 Gratia
Discovery
Discovered by	Auguste Charlois
Discovery date	31 December 1896
Designations
Named after	The Charites
Alternative names	1896 DF
Minor planet category	Main belt
Orbital characteristics^[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	117.66 yr (42975 d)
Aphelion	3.07379 AU (459.832 Gm)
Perihelion	2.47464 AU (370.201 Gm)
Semi-major axis	2.77421 AU (415.016 Gm)
Eccentricity	0.10798
Orbital period	4.62 yr (1687.8 d)
Average orbital speed	17.89 km/s
Mean anomaly	350.256°
Mean motion	0° 12^m 47.887^s / day
Inclination	8.20911°
Longitude of ascending node	99.2454°
Argument of perihelion	331.822°
Earth MOID	1.49131 AU (223.097 Gm)
Jupiter MOID	2.17578 AU (325.492 Gm)
Jupiter Tisserand parameter	3.313
Physical characteristics
Dimensions	7004872000000000000♠87.20±1.8 km
Mass	unknown
Mean density	unknown
Equatorial surface gravity	unknown
Equatorial escape velocity	unknown
Rotation period	19.47 h (0.811 d)
Geometric albedo	6998279000000000000♠0.0279±0.001
Temperature	unknown
Spectral type	unknown
Absolute magnitude (H)	9.5

424 Gratia is a large Main belt asteroid.

It was discovered by Auguste Charlois on December 31, 1896 in Nice.

References

Minor planets navigator

423 Diotima 424 Gratia 425 Cornelia

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