742 Edisona

742 Edisona is a minor planet, specifically an asteroid orbiting in the asteroid belt that was discovered by German astronomer Franz Kaiser on February 23, 1913. It was named for inventor Thomas Edison.^[2] This asteroid is orbiting 3.01 AU with a period of 5.22 years and an eccentricity of 0.119. The orbital plane is inclined at an angle of 11.2° to the plane of the ecliptic.^[1] This is a member of the dynamic Eos family of asteroids that most likely formed as the result of a collisional breakup of a parent body.^[3]

742 Edisona

Discovery
Discovered by	Franz Kaiser
Discovery site	Heidelberg
Discovery date	23 February 1913
Designations
MPC designation	(742) Edisona
Alternative designations	1913 QU
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	102.98 yr (37,612 d)
Aphelion	3.3678 AU (503.82 Gm)
Perihelion	2.6535 AU (396.96 Gm)
Semi-major axis	3.0107 AU (450.39 Gm)
Eccentricity	0.11862
Orbital period (sidereal)	5.22 yr (1,908.1 d)
Mean anomaly	65.177°
Mean motion	0° 11m 19.212s / day
Inclination	11.219°
Longitude of ascending node	64.214°
Argument of perihelion	284.294°
Earth MOID	1.67537 AU (250.632 Gm)
Jupiter MOID	2.11567 AU (316.500 Gm)
TJupiter	3.210
Physical characteristics
Mean radius	22.80±1.75 km
Synodic rotation period	18.52 h (0.772 d)
Geometric albedo	0.1286±0.022
Absolute magnitude (H)	9.55

Photometric observations made during 2008 were used to produce a light curve of 742 Edisona showing a rotation period of 18.52±0.01 with a brightness variation of 0.30±0.01 in magnitude.^[4] It spans a girth of approximately 45.6 km.^[1]