996 Hilaritas

From Wikipedia, the free encyclopedia
Jump to: navigation, search
996 Hilaritas
Discovery
Discovered by J. Palisa
Discovery site Vienna
Discovery date March 21, 1923
Designations
1923 NM
Orbital characteristics
Epoch August 18, 2005 (JDCT 2453600.5)
Aphelion 3.520 AU
Perihelion 2.661 AU
3.091 AU
Eccentricity 0.139
5.434 a
85.910°
Inclination 0.661°
347.573°
148.846°

996 Hilaritas is a Themistian asteroid. It was discovered in 1923 by Austrian astronomer Johann Palisa. Following Palisa's death in 1925, this asteroid was named for a "happy or contented mind"; qualities associated with the discoverer.[1]

Photometric observations of this asteroid collected during 2010 show a rotation period of 10.052 ± 0.001 hours with a brightness variation of 0.65 ± 0.03 magnitude.[2]

References[edit]

  1. ^ Schmadel, Lutz D. (2012), Dictionary of Minor Planet Names (6th ed.), Springer, p. 85, ISBN 3642297188. 
  2. ^ Strabla, Luca; Quadri, Ulisse; Girelli, Roberto (January 2011), "Lightcurve Analysis of 996 Hilaritas", The Minor Planet Bulletin 38 (1): 14–15, Bibcode:2011MPBu...38...14S. 

External links[edit]