Discovered by Johann Palisa Minor planet category Main belt Discovered 18 August 1884 Discoverer Johann Palisa Discovery site Vienna Observatory | Discovery date 18 August 1884 Observation arc 131.66 yr (48087 d) Orbits Sun Named after Adrasteia Asteroid group Asteroid belt | |
Alternative names A915 TD, 1955 MK1,
1956 UJ Aphelion 3.66279 AU (547.946 Gm) Similar 276 Adelheid, 266 Aline, 218 Bianca, 242 Kriemhild, 265 Anna | ||
239 Adrastea is a main belt asteroid. It was discovered by Johann Palisa on August 18, 1884 in Vienna. It is named after the Greek nymph Adrasteia. The asteroid is roughly 42 km in diameter.
References
239 Adrastea Wikipedia(Text) CC BY-SA