805 Hormuthia

805 Hormuthia

Discovery
Discovered by	Max Wolf
Discovery site	Heidelberg
Discovery date	17 April 1915
Designations
Alternative names	1915 WW
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	100.85 yr (36835 d)
Aphelion	3.7899 AU (566.96 Gm)
Perihelion	2.5947 AU (388.16 Gm)
Semi-major axis	3.1923 AU (477.56 Gm)
Eccentricity	0.18720
Orbital period	5.70 yr (2083.3 d)
Mean anomaly	132.402°
Mean motion	0° 10^m 22.08^s / day
Inclination	15.728°
Longitude of ascending node	166.446°
Argument of perihelion	132.362°
Earth MOID	1.60843 AU (240.618 Gm)
Jupiter MOID	1.7152 AU (256.59 Gm)
Jupiter Tisserand parameter	3.111
Physical characteristics
Mean radius	33.47±1.45 km
Rotation period	9.510 h (0.3963 d)
Geometric albedo	0.0465±0.004
Absolute magnitude (H)	9.82

805 Hormuthia is a minor planet orbiting the Sun. This asteroid follows an elliptical orbit through the main asteroid belt that reaches perihelion just outside the Kirkwood gap at 2.5 AU. The estimated diameter is 73 km, and it is one of the 500 largest asteroids.

References

1. "805 Hormuthia (1915 WW)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 4 May 2016.

External links

• Discovery Circumstances: Numbered Minor Planets
• 805 Hormuthia (1915 WW) at the JPL Small-Body database.
• List of 500 largest asteroids
• 805 Hormuthia at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters