Back Interaktiewe sterrestelsel Afrikaans تفاعل مجري Arabic Взаимодействащи галактики Bulgarian Interacció de galàxies Catalan Wechselwirkende Galaxien German Αλληλεπιδρών γαλαξίας Greek Interagantaj galaksioj Esperanto Interacción de galaxias Spanish برهم‌کنش کهکشان Persian Galaksipari Finnish

Interacting galaxy

NGC 3169 (left) and NGC 3166 (right) display some curious features, showing that each is close enough to feel the distorting gravitational influence of the other. Image from the Wide Field Imager on the MPG/ESO 2.2-metre telescope at the La Silla Observatory.

Interacting galaxies (colliding galaxies) are galaxies whose gravitational fields result in a disturbance of one another. An example of a minor interaction is a satellite galaxy disturbing the primary galaxy's spiral arms. An example of a major interaction is a galactic collision, which may lead to a galaxy merger.

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