Discovered by P. P. Henry MPC designation 164 Minor planet category Main belt Discovered 12 July 1876 Spectral type C-type asteroid Asteroid group Asteroid belt | Discovery date 12 July 1876 Named after Unknown Observation arc 118.93 yr (43438 d) Orbits Sun Discovery site Paris Observatory Discoverers Paul Henry, Prosper Henry | |
Similar 165 Loreley, 162 Laurentia, 127 Johanna, 56 Melete | ||
164 Eva is a main-belt asteroid that was discovered by the French brothers Paul Henry and Prosper Henry on July 12, 1876, in Paris. The reason the name Eva was chosen remains unknown. The orbital elements for 164 Eva were published in 1877 by American astronomer Winslow Upton. It is categorized as a C-type asteroid and is probably composed of primitive carbonaceous chondritic materials.
Photometric observations of this asteroid at the Palmer Divide Observatory in Colorado Springs, Colorado, during 2008 gave a light curve with a period of 13.672 ± 0.003 hours and a small brightness variation of 0.04 ± 0.01 in magnitude. This is consistent with a previous study reported in 1982 that listed a period estimate of 13.66 hours.
In 2000 Eva was reported occulting a dim star.