A family of asteroids. Asteroids in the same family have roughly the same semi-major axis, eccentricity, and orbital inclination. They are thought to be a group of fragments that were formed when a single asteroid broke apart. They were discovered by Seiji Hirayama. (→ Hirayama Family ) Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
小惑星の族の一つ。同族の小惑星は,軌道長半径,離心率,軌道傾斜がほぼ等しい。もともと1つの小惑星が分裂してできた破片の集団と考えられている。平山清次が発見した。 (→平山族 )
出典 ブリタニカ国際大百科事典 小項目事典ブリタニカ国際大百科事典 小項目事典について 情報 |
>>: AOC designation - AOC designation
This arborescent lichen grows on rocks along roads...
1726-1792 A Chinese poet from the mid-Edo period....
…[Hiroshi Aramata]. … *Some of the terminology th...
...Interspecific hybridization is rare, but inter...
(1) Pulmonary edema Definition Pulmonary edema is ...
Italian politician and sociologist. Since 1894, h...
...Here, we will leave these three diseases and c...
Year of death: July 3, 1578 (August 6, 1578) Year ...
...The so-called Ming and Qing music that was int...
...Anyone who wants to become a barrister must be...
… [Ken Inoue]. … *Some of the terminology that me...
It is an interrogation that suggests the statemen...
A stand on which books are placed during reading,...
A French high school under the jurisdiction of the...
An extra-office official established in 818. The J...