Tags: Planet.

54 Alexandra is a very large and dark main-belt asteroid. It was discovered by German-French astronomer Hermann Goldschmidt on September 10 1858 and named after the German explorer Alexander von Humboldt; it was the first asteroid to be named after a male.On May 17 2005 this asteroid occulted a faint star (magnitude 8.5) and the event was observed and timed in a number of locations within the U.S. and Mexico.

54Alexandra_(Lightcurve_Inversion).png
average speed (km/s)
64476.0
orbital period (μ)
1.40972e+08
periapsis (km)
3.26043e+11
temperature (K)
169.0
absolute magnitude
7.66
albedo
0.056
discovery date
1858-09-10
discoverer
Hermann Goldschmidt
epoch
December 31 2006 (JD 2454100.5)
escape velocity (kmh)
315.72
rotation period (s)
65304.0

Loading...

This page contains content from the copyrighted Wikipedia article "54 Alexandra"; that content is used under the GNU Free Documentation License (GFDL). You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL.