3 Juno

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June as seen by 100-inch Hooker telescope at Mt. Wilson Observatory in four wavelength bands

3 Juno is a main belt asteroid discovered by Karl Ludwig Harding on September 1, 1804.[1] Juno was the third asteroid discovered in the Solar System and is named after Juno, the Roman goddess that is the queen of all gods.[2]

Size comparison: the first 10 asteroids discovered, profiled against Earth's Moon. Juno is third from the left.

Juno is an S-type asteroid,[3] and is estimated to contain 1% of the total mass of the asteroid belt.[4]

References[change | change source]

  1. "JPL Small-Body Database Browser". ssd.jpl.nasa.gov. 2011. Retrieved March 30, 2011. CS1 maint: discouraged parameter (link)
  2. Schmadel, Lutz D. (2003). Dictionary of minor planet names, Volume 1. Springer. p. 15. ISBN 3540002383. Retrieved March 21, 2011. CS1 maint: discouraged parameter (link)
  3. "Multispectral analysis of Asteroid 3 Juno taken with the 100-inch telescope at Mount Wilson Observatory" (PDF). University of North Dakota. Retrieved March 29, 2011. CS1 maint: discouraged parameter (link)[permanent dead link]
  4. Pitjeva, E. V. (2005). "High-Precision Ephemerides of Planets—EPM and Determination of Some Astronomical Constants" (PDF). Solar System Research. 39 (3): 176. doi:10.1007/s11208-005-0033-2. CS1 maint: discouraged parameter (link)