1567 Alikoski, provisional designation , is a rare-type carbonaceous
asteroid
An asteroid is a minor planet of the inner Solar System. Sizes and shapes of asteroids vary significantly, ranging from 1-meter rocks to a dwarf planet almost 1000 km in diameter; they are rocky, metallic or icy bodies with no atmosphere.
...
from the outer region of the
asteroid belt
The asteroid belt is a torus-shaped region in the Solar System, located roughly between the orbits of the planets Jupiter and Mars. It contains a great many solid, irregularly shaped bodies, of many sizes, but much smaller than planets, called ...
, approximately 67 kilometers in diameter. It was discovered on 22 April 1941, by Finnish astronomer
Yrjö Väisälä
Yrjö Väisälä (; 6 September 1891 – 21 July 1971) was a Finnish astronomer and physicist.
His main contributions were in the field of optics. He was also active in geodetics, astronomy and optical metrology. He had an affectionate nick ...
at
Turku Observatory
Turku ( ; ; sv, Åbo, ) is a city and former capital on the southwest coast of Finland at the mouth of the Aura River, in the region of Finland Proper (''Varsinais-Suomi'') and the former Turku and Pori Province (''Turun ja Porin lääni''; ...
in Southwest Finland. It was later named after Finnish astronomer Heikki Alikoski.