25000 Astrometria

From Wikipedia, the free encyclopedia
Jump to: navigation, search
25000 Astrometria
Discovery[1]
Discovered by Paul G. Comba
Discovery site Prescott Observatory
Discovery date July 28, 1998
Designations
MPC designation 25000
Named after
Astrometry
1998 OW5
Minor planet category Main belt [2]
Orbital characteristics[3]
Epoch November 30, 2008
Aphelion 3.4752 AU
Perihelion 2.8561 AU
3.16566 AU
Eccentricity 0.097771
2057.28 days (5.63 years)
114.333°
Inclination 14.974°
142.314°
6.642°
Physical characteristics
Dimensions 22.77 kilometres (14.15 mi) ± 1.8 kilometres (1.1 mi)
Mean diameter[4]
Albedo 0.0311 ± 0.006 [4]
12.6 [5]

25000 Astrometria (1998 OW5) is a main-belt asteroid discovered on July 28, 1998 by Paul G. Comba at Prescott Observatory.[1] It is named after the technique of astrometry which is used to discover many minor planets.[6] The asteroid made its closest approach to earth at a distance of 1.912 AU on March 21, 2013.[7]

References[edit]

  1. ^ a b "Discovery Circumstances: Numbered Minor Planets (20001)-(25000)". IAU: Minor Planet Center. Retrieved January 7, 2009. 
  2. ^ "25000 Astrometria (1998 OW5)". JPL Small-Body Database. Jet Propulsion Laboratory. Retrieved January 8, 2009. 
  3. ^ "(25000) Astrometria". AstDyS. Italy: University of Pisa. Retrieved January 8, 2009. 
  4. ^ a b Tedesco et al. (2004). "Supplemental IRAS Minor Planet Survey (SIMPS)". IRAS-A-FPA-3-RDR-IMPS-V6.0. Planetary Data System. Retrieved January 7, 2009. [dead link]
  5. ^ Tholen (2007). "Asteroid Absolute Magnitudes". EAR-A-5-DDR-ASTERMAG-V11.0. Planetary Data System. Archived from the original on 1 December 2008. Retrieved January 7, 2009. [dead link]
  6. ^ Schmadel, Lutz (2003). Dictionary of minor planet names (fifth ed.). Germany: Springer. p. 876. ISBN 3-540-00238-3. Retrieved January 8, 2009. 
  7. ^ "Asteroid 25000 Astrometria Closest To Earth (1.912 AU". Zapaday.com. November 16, 2012. Retrieved February 23, 2013.