1155 Aënna

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1155 Aënna ^[1]

Discovery and designation
Discovered by	Reinmuth, K.
Discovery date	1928-Jan-26
Orbital characteristics
Epoch Orbital Elements at Epoch 2454400.5 (2007-Oct-27.0) TDB
Aphelion	2.8653588 AU
Perihelion	2.063751 AU
Semi-major axis	2.4645549 AU
Eccentricity	0.1626273
Orbital period	1413.2082843 days 3.87 years
Mean anomaly	154.99329 °
Inclination	6.59503 °
Longitude of ascending node	39.19708 °
Argument of perihelion	194.52343 °
Physical characteristics
Dimensions	diameter 11.64
Geometric albedo	0.3278
Absolute magnitude	11.50 mag

1155 Aënna is a main belt asteroid orbiting the Sun. Approximately 12 kilometers in diameter, it makes a revolution around the Sun once every 4 years. It was discovered by Karl Wilhelm Reinmuth at Heidelberg, Germany on January 26, 1928.^[1] The name contains the German pronunciation of the initials "A" and "N" followed by the feminine ending, to honor the Astronomische Nachrichten. The name was proposed by the Astronomisches Rechen-Institut. The provisional designation for the asteroid was 1928 BD.^[2]

[edit] References

1. ^ ^{a b} "JPL Small-Body Database Browser". Retrieved on October 17, 2007.
2. ^ Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names. Springer. ISBN 3540002383. 

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