(8590) Pygargus

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( 8590 ) pygargus is an asteroid of the outer main belt, which was discovered on 24 September 1960 by the Dutch astronomer Cornelis Johannes van Houten couple and Ingrid van Houten - Groeneveld. The discovery came as part of the Palomar - Leiden Survey, which recorded by Tom Gehrels with the 120 - inch Oschin Schmidt telescope at Palomar Observatory field plates at Leiden University were screened. An unconfirmed sighting (1954 QE1 ) of the asteroid, there had been at the Palomar Observatory already on 27 August 1954.

The asteroid is part of the Themis family, a group of asteroids, which was named after ( 24) Themis. After FORMING classification (Small Main -Belt Asteroid Spectroscopic Survey) were assumed in ( 8590 ) pygargus of a dark surface with a spectroscopic investigation of Gianluca Masi, Sergio Foglia and Richard P. Binzel, it might be so, roughly speaking, to act a C- asteroids.

The timeless ( nichtoskulierenden ) orbital elements of ( 8590 ) pygargus are almost identical to those of the smaller, if we start from the absolute brightness of 16.2 vs. 13.2, asteroid ( 243371 ) 2008 WY119.

( 8590 ) pygargus is named after the Montagu's harrier, Circus pygargus whose scientific name is. At the time of designation of the asteroid on February 2, 1999, the Harrier was on the Dutch Red List of Threatened Species. The first letter of the asteroid ( 8585 ) to ( 8600 ) form the phrase Per aspera ad astra.