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physical phenomena > event > celestial event > periodic celestial event > orbital event > binary star orbital event > periastron |
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periastron | ||||
subject | fact |
periastron | has antonym apastron | ![]() |
has participants binary star | ![]() | |
has definition The point in the orbit of one component of a binary system where it is nearest the other component. | ![]() | |
is an instance of binary star orbital event | ![]() | |
orbital event | has period 1 orbital period | ![]() |
event | has duration | ![]() |
has synonym world point | ![]() | |
has time of occurrence | ![]() |