(339) Доротея

(339) Доротея
Астероид
Открытие
Первооткрыватель Макс Вольф
Место обнаружения Хайдельберг
Дата обнаружения 25 сентября 1892
Эпоним Клумпке, Доротея
Альтернативные обозначения 1892 G
Категория Главное кольцо
(Семейство Эос)
Орбитальные характеристики
Эпоха 27 августа 2011 года
JD 2455800.5
Эксцентриситет (e) 0,09469
Большая полуось (a) 450,773 млн км
(3,01323 а. е.)
Перигелий (q) 408,089 млн км
(2,72791 а. е.)
Афелий (Q) 493,456 млн км
(3,29855 а. е.)
Период обращения (P) 1910,499 сут (5,231 г.)
Средняя орбитальная скорость 17,12 км/с
Наклонение (i) 9,930°
Долгота восходящего узла (Ω) 173,765°
Аргумент перигелия (ω) 161,444°
Средняя аномалия (M) 295,446°
Физические характеристики
Диаметр 38,25 км
Масса 5,86⋅1016 кг
Плотность 2,000 г/см³
Ускорение свободного падения на поверхности 0,0107 м/с²
2-я космическая скорость 0,0202 км/с
Период вращения 5,974 ч
Спектральный класс K
Видимая звёздная величина 14,23m (текущая)
Абсолютная звёздная величина 9,24m
Альбедо 0,2431
Средняя температура поверхности 153 К (−120 °C)
Текущее расстояние от Солнца 3,222 а. е.
Текущее расстояние от Земли 2,339 а. е.
Логотип Викиданных Информация в Викиданных ?

(339) Доротея (нем. Dorothea) — астероид главного пояса, который принадлежит к редкому спектральному классу K и входит в состав семейства Эос. Он был открыт 25 сентября 1892 года немецким астрономом Максом Вольфом в обсерватории Хайдельберга и назван в честь известной американской женщины-астронома Доротеи Клюмпке[1].

Орбита астероида Доротея и его положение в Солнечной системе

См. также

Примечания

  1. Lutz D. Schmadel. Dictionary of Minor Planet Names (англ.). — Fifth Revised and Enlarged Edition. — Berlin, Heidelberg, New York: Springer, 2003. — P. 43. — ISBN 3-540-00238-3.

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