990 Yerkes is a main belt asteroid discovered by Belgian-American astronomer George Van Biesbroeck in 1922, and named after the Yerkes Observatory.
Photometric observations of this asteroid collected during 2009 show a rotation period of 24.45 ± 0.05 hours with a brightness variation of 0.35 ± 0.05 magnitude.[2]
990Yerkes is a main belt asteroid discovered by Belgian-American astronomer George Van Biesbroeck in 1922, and named after the Yerkes Observatory. Photometric...
Yerkes may refer to: Yerkes (surname), notable people with this surname Yerkes, Kentucky Yerkes, Pennsylvania Yerkes Observatory, an astronomical observatory...
at Yerkes Observatory, and it was named for astronomer George Ellery Hale of Yerkes Observatory fame. Some additional examples include 990Yerkes, 991...
forced into retirement at Yerkes at the age of 65. Relieved of administrative duties, he became an even more active observer at Yerkes and at the McDonald Observatory...
Names. Springer Berlin Heidelberg. p. 86. doi:10.1007/978-3-540-29925-7_990. ISBN 978-3-540-00238-3. "JPL Small-Body Database Browser: 989 Schwassmannia...
a Themistian asteroid. It was discovered by Otto Struve in 1922 at the Yerkes Observatory in Williams Bay, Wisconsin, United States. It is named after...
(April 2010). "CCD Photometry and Lightcurve Analysis of 985 Rosina and 990Yerkes from Grup D'Astronomica de Tiana (G.A.T.) Observatory". The Minor Planet...
initiated the Yerkes–McDonald asteroid survey (1950–1952). From 1950-1960 he was professor at the University of Chicago, directing the Yerkes Observatory...
constellation Scorpius. The Roman numeral IV stands for subgiant in the Yerkes spectral classification scheme. Four is the number of nucleobase types in...
753 Washburn Observatory WI Washburn Observatory, Madison 754 Yerkes Observatory WI Yerkes Observatory, Williams Bay 755 Optec Observatory MI Optec Observatory...
constellation Andromeda The Roman numeral VI: Stands for subdwarfs in the Yerkes spectral classification scheme (Usually) stands for the sixth-discovered...
Nancy G. (1950). "Revised Standards for Supergiants on the System of the Yerkes Spectral Atlas". Astrophysical Journal. 112: 362. Bibcode:1950ApJ...112...
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