Цепочка Энки

Цепочка Энки
Цепочка Энки на фото «Галилео» 1994 года
Цепочка Энки на фото «Галилео» 1994 года
Характеристики
Диаметр160 ± 1 км[1]
Название
ЭпонимЭнки[1]
Расположение
38°48′ с. ш. 13°36′ з. д. / 38,8° с. ш. 13,6° з. д. / 38.8; -13.6
Небесное телоГанимед 

Цепочка Энки (Enki Catena) — цепочка кратеров длиной 161.3 км на спутнике Юпитера Ганимеде. Названа по имени шумерского бога подземных вод Энки, имя одобрено Международным астрономическим союзом в 1997 году.

Расположена по координатам 38,8° с. ш. 13,6° з. д.[2]

Строение

Эта цепочка из 13 кратеров сформирована, вероятно, столкновением с кометой, которая была разорвана на части гравитацией Юпитера. Вскоре после разрушения кометы 13 её фрагментов упали подряд на Ганимед. Кратеры Энки легли поперёк чёткой границы между светлой и тёмной областями, разделёнными тонким жёлобом (на снимке проходит через центр, по диагонали). Выброшенное вещество, окружающее кратеры, на светлой области оказалось очень ярким. Но хотя все эти кратеры сформировались почти одновременно, в тёмной области различить выброшенное вещество сложно. Возможно, причина этого в том, что столкновение извлекло и перемешало тёмный материал, который оказался неразличим на тёмной поверхности[3].

Примечания

  1. ↑ 1 2 Gazetteer of Planetary Nomenclature — Международный астрономический союз.
  2. ↑ Gazetteer of Planetary Nomenclature (англ.). planetarynames.wr.usgs.gov. Дата обращения: 22 августа 2022. Архивировано 6 декабря 2019 года.
  3. ↑ PIA01610: Anatomy of a Torn Comet (англ.). NASA Jet Propulsion Laboratory (15 июля 1998). Дата обращения: 22 февраля 2013. Архивировано 15 октября 2012 года. (англ.)

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