5223 McSween
Encyclopedia
5223 McSween is an outer main-belt asteroid
Asteroid
Asteroids are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones...

 discovered on March 6, 1981 by S. J. Bus at Siding Spring Observatory
Siding Spring Observatory
Siding Spring Observatory near Coonabarabran, New South Wales, Australia, part of the Research School of Astronomy & Astrophysics at the Australian National University , incorporates the Anglo-Australian Telescope along with a collection of other telescopes owned by the Australian National...

 in the course of the U.K. Schmidt-Caltech Asteroid Survey
U.K. Schmidt-Caltech Asteroid Survey
U.K. Schmidt-Caltech Asteroid Survey, or U.K. Schmidt Telescope-Caltech asteroid survey, or UCAS is the joint astronomical survey performed in 1982...

.

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