191 Kolga

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191 Kolga
Discovered by C. H. F. Peters, 1878
Main belt
Orbital characteristics[1]
Aphelion 3.152 AU
Perihelion 2.643 AU
2.898 AU
Eccentricity 0.088
4.93 years
Inclination 11.51°
Physical characteristics
17.625[2] hours
Albedo 0.041

191 Kolga is a large, dark main-belt asteroid that was discovered by German-American astronomer C. H. F. Peters on September 30, 1878, in Clinton, New York. It is named after Kolga, the daughter of Ægir in Norse mythology.[3]

In 2009, Photometric observations of this asteroid were made at the Palmer Divide Observatory in Colorado Springs, Colorado. The resulting light curve shows a synodic rotation period of 17.625 ± 0.004 hours with a brightness variation of 0.30 ± 0.03 in magnitude. Previous independent studies produced inconsistent results that differ from this finding.[2]


  1. ^ Yeomans, Donald K., "191 Kolga", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), retrieved 2013-03-25. 
  2. ^ a b Warner, Brian D. (October 2009), "Asteroid Lightcurve Analysis at the Palmer Divide Observatory: 2009 March-June", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers 36 (4), pp. 172–176, Bibcode:2009MPBu...36..172W, doi:10.1016/j.pss.2012.03.009. 
  3. ^ Schmadel, Lutz D. (2012), Dictionary of Minor Planet Names (6th ed.), Springer, p. 30, ISBN 3642297188. 

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