Photometric Studies of Asteroids. VIII. Additional Photographic Magnitudes.

In the Yerkes-McDonald Asteroid Survey, photographic magnitudes were determined brighter than P0 = 16.5. For fainter asteroids and for some with large inclination and eccentricity additional magnitudes are reported in this paper. The work was done as a part of the regular Indiana Asteroid Program, supplemented by plates taken in South Africa. Aspect variation and its effects on the precision of photometry are discussed. The axes of rotation of the asteroids are apparently fixed in space. Asteroids may be used in order to transfer the zero point of the U, B, V system from the northern to the southern hemispheres.