4574 Yoshinaka
Encyclopedia
4574 Yoshinaka is a main-belt
asteroid
discovered on December 20, 1986 by Tsuneo Niijima
and Takeshi Urata
at Ojima.
Asteroid belt
The asteroid belt is the region of the Solar System located roughly between the orbits of the planets Mars and Jupiter. It is occupied by numerous irregularly shaped bodies called asteroids or minor planets...
asteroid
Asteroid
Asteroids are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones...
discovered on December 20, 1986 by Tsuneo Niijima
Tsuneo Niijima
is a Japanese astronomer.He is a prolific discoverer of asteroids.He co-discovered the periodic comet 112P/Urata-Niijima.Asteroid 5507 Niijima is named after him.-References:...
and Takeshi Urata
Takeshi Urata
is a Japanese astronomer. He is a prolific discoverer of asteroids, observing at Nihondaira Observatory.In 1978 he became the first amateur to discover a minor planet in over fifty years. He named it after it his daughter, Mizuho. His pioneering feat led to an upsurge in such discoveries. In the...
at Ojima.