Discovered by Max Wolf Alternative names 1894 BE Observation arc 121.40 yr (44342 d) Orbits Sun Discoverer Max Wolf | Discovery date 1 November 1894 Minor planet category Mars-crossing asteroid Discovered 1 November 1894 Spectral type S-type asteroid Asteroid group Mars-crosser asteroid | |
Aphelion 3.03005 AU (453.289 Gm) Discovery site Heidelberg-Königstuhl State Observatory Similar 417 Suevia, 528 Rezia, 509 Iolanda, 351 Yrsa, 540 Rosamunde | ||
391 Ingeborg is a relatively large Mars-crossing asteroid that was discovered by Max Wolf on November 1, 1894 at Heidelberg observatory. When discovered the asteroid was observed for a couple of weeks, and follow-up observations were made in 1901 and 1904.
With an absolute magnitude of 10.8, the asteroid is about 18–40 km in diameter. Other large Mars crossing minor planets include 132 Aethra (43 km), 323 Brucia (36 km), and 2204 Lyyli (25 km).
References
391 Ingeborg Wikipedia(Text) CC BY-SA