939 Isberga

939 Isberga

Name
Name	Isberga
Designation	1920 HR; 1930 QP; 1957 QE; 1957 UU
Discovery
Discoverer	K. Reinmuth
Discovery date	October 4, 1920
Discovery site	Heidelberg
Orbital elements
Epoch August 18, 2005 (JDCT 2453600.5)
Eccentricity (e)	0.177
Semimajor axis (a)	2.247 AU
Perihelion (q)	1.848 AU
Aphelion (Q)	2.645 AU
Orbital period (P)	3.368 a
Inclination (i)	2.588°
Longitude of the ascending node (Ω)	327.288°
Argument of Perihelion (ω)	6.001°
Mean anomaly (M)	98.427°

939 Isberga is an S-type asteroid belonging to the Flora family of main-belt asteroids. It was discovered from Heidelberg on 4 October 1920 by Karl Wilhelm Reinmuth. As was his common practice, Reinmuth gave the asteroid a girl's name without reference to any specific person.

Isberga rotates quickly, with a period of 2.9173 hours. It is also suspected to be a binary asteroid, due to a second periodicity observed in its lightcurve from 24 Feb to 4 Mar 2006. The secondary object has an orbital period of 26.8 hours, but its size is undetermined. ^[1]

External links

• Discovery Circumstances: Numbered Minor Planets
• List of Asteroids with Satellites