668 Dora

668 Dora is an asteroid orbiting in the asteroid belt located roughly between the orbits of the planets Mars and Jupiter. The name may have been inspired by the asteroid's provisional designation 1908 DO.

668 Dora

Discovery
Discovered by	August Kopff
Discovery site	Heidelberg
Discovery date	27 July 1908
Designations
MPC designation	(668) Dora
Pronunciation	/ˈdɔːrə/[1]
Alternative designations	1908 DO
Minor planet category	asteroid belt Dora family
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	107.05 yr (39099 d)
Aphelion	3.4515 AU (516.34 Gm)
Perihelion	2.1369 AU (319.68 Gm)
Semi-major axis	2.7942 AU (418.01 Gm)
Eccentricity	0.23524
Orbital period (sidereal)	4.67 yr (1706.0 d)
Mean anomaly	22.6953°
Mean motion	0° 12m 39.672s / day
Inclination	6.8428°
Longitude of ascending node	214.450°
Argument of perihelion	113.302°
Physical characteristics
Mean radius	13.42±0.35 km
Synodic rotation period	22.914 h (0.9548 d)
Geometric albedo	0.0467±0.003
Absolute magnitude (H)	12.0

References

1. Noah Webster (1884) A Practical Dictionary of the English Language
2. "668 Dora (1908 DO)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.

External links

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