Jena (minor planet designation: 526 Jena) is a Themistian asteroid. It was discovered in Heidelberg by the German astronomer Max Wolf on 14 March 1904 and named after the city of Jena.
![]() Modelled shape of Jena from its lightcurve | |
Discovery | |
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Discovered by | Max Wolf |
Discovery site | Heidelberg |
Discovery date | 14 March 1904 |
Designations | |
MPC designation | (526) Jena |
Pronunciation | /ˈdʒɛnə/,[1] German: [ˈjeːnaː] |
Alternative designations | 1904 NQ |
Orbital characteristics[2] | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 112.05 yr (40927 d) |
Aphelion | 3.5421 AU (529.89 Gm) |
Perihelion | 2.7014 AU (404.12 Gm) |
Semi-major axis | 3.1218 AU (467.01 Gm) |
Eccentricity | 0.13464 |
Orbital period (sidereal) | 5.52 yr (2014.7 d) |
Mean anomaly | 174.835° |
Mean motion | 0° 10m 43.284s / day |
Inclination | 2.1735° |
Longitude of ascending node | 137.776° |
Argument of perihelion | 357.408° |
Physical characteristics | |
Mean radius | 20.745±1 km |
Synodic rotation period | 9.474 h (0.3948 d) |
Geometric albedo | 0.0877±0.009 |
Absolute magnitude (H) | 10.17 |
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