790 Pretoria is a minor planet orbiting the Sun that was discovered by English astronomer Harry Edwin Wood on January 16, 1912.
It is a member of the Cybele group located beyond the core of the main belt[4] (see Minor planet groups) and named after Pretoria, the capital city of South Africa.
10μ radiometric data collected from Kitt Peak in 1975 gave a diameter estimate of 175 km.
[5] In the present day it is estimated to be 170 km (106 mi) in diameter.
[2] Photometric measurements of the asteroid made in 2005 at the Palmer Divide Observatory showed a light curve with a period of 10.370 ± 0.002 hours and a brightness variation of 0.08 ± 0.03 in magnitude.