639 Latona is a minor planet, specifically an asteroid orbiting in the asteroid belt. It was discovered by German astronomer Karl Lohnert on July 19, 1907, at Heidelberg.
Discovery | |
---|---|
Discovered by | K. Lohnert |
Discovery site | Heidelberg |
Discovery date | 19 July 1907 |
Designations | |
(639) Latona | |
Pronunciation | /leɪˈtoʊnə/[1] |
1907 ZT | |
Orbital characteristics[2] | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 108.74 yr (39718 d) |
Aphelion | 3.3364 AU (499.12 Gm) |
Perihelion | 2.6969 AU (403.45 Gm) |
3.0167 AU (451.29 Gm) | |
Eccentricity | 0.10600 |
5.24 yr (1913.8 d) | |
253.886° | |
0° 11m 17.196s / day | |
Inclination | 8.5546° |
279.853° | |
70.682° | |
Physical characteristics | |
Mean radius | 35.625±0.85 km |
6.193 h (0.2580 d) | |
0.1826±0.009 | |
8.20 | |
Photometric observations of this asteroid at Palmer Divide Observatory in Colorado Springs, Colorado, during 2007 gave a light curve with a period of 6.139 ± 0.002 hours and a brightness variation of 0.08 ± 0.01 in magnitude. This confirms period measurements of about 6.2 hours reported in 1987 and 2001.[3]
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.[4]