1155 Aënna

Infobox Planet
minorplanet = yes
bgcolour = #FFFFC0
name = 1155 Aënna cite web | title="JPL Small-Body Database Browser" | url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=1155 | accessdate= October 17 | accessyear= 2007 ]
discovery = yes
discoverer = Reinmuth, K.
discovered = 1928-Jan-26
epoch = Orbital Elements at Epoch 2454400.5 (2007-Oct-27.0) TDB
aphelion = 2.8653588 AU
perihelion = 2.063751 AU
semimajor = 2.4645549 AU
eccentricity = 0.1626273
period = 1413.2082843 days
3.87 years
inclination = 6.59503 °
asc_node = 39.19708 °
mean_anomaly = 154.99329 °
arg_peri = 194.52343 °
physical_characteristics = yes| dimensions = diameter 11.64
albedo = 0.3278
abs_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. 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. [cite book |last= Schmadel |first= Lutz D. |title= Dictionary of Minor Planet Names |publisher= Springer |year= 2003 |isbn= 3540002383 ]

References