446 Aeternitas

Aeternitas (minor planet designation: 446 Aeternitas) is a main belt asteroid. It was discovered by Max Wolf and A. Schwassmann on 27 October 1899 in Heidelberg. It is classified as an A-type asteroid. The asteroid is roughly 45 km in diameter and has a high albedo.[1]

446 Aeternitas

Discovery
Discovered by	M. F. Wolf A. Schwassmann
Discovery date	27 October 1899
Designations
MPC designation	(446) Aeternitas
Pronunciation	/iːˈtɜːrnɪtæs/
Named after	Aeternitas
Alternative designations	1899 ER
Minor planet category	Main belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	116.23 yr (42452 d)
Aphelion	3.14078 AU (469.854 Gm)
Perihelion	2.43222 AU (363.855 Gm)
Semi-major axis	2.78650 AU (416.854 Gm)
Eccentricity	0.12714
Orbital period	4.65 yr (1699.0 d)
Mean anomaly	83.3875°
Mean motion	0° 12^m 42.811^s / day
Inclination	10.6270°
Longitude of ascending node	42.0823°
Argument of perihelion	279.496°
Physical characteristics
Dimensions	45.40±3.2 km[1]
Rotation period	15.7413 h (0.65589 d)[1]
Geometric albedo	0.2361±0.038[1]
Spectral type	A[1]
Absolute magnitude (H)	8.90[1]

References

1. "JPL Small-Body Database Browser: 446 Aeternitas (1899 ER)". Jet Propulsion Laboratory. Retrieved 10 May 2016.

External links

• 446 Aeternitas at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 446 Aeternitas at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters