Ariadne Crater is a
crater on
Venus
Venus is the second planet from the Sun. It is sometimes called Earth's "sister" or "twin" planet as it is almost as large and has a similar composition. As an interior planet to Earth, Venus (like Mercury) appears in Earth's sky never f ...
. Its central peak serves as the
prime meridian
A prime meridian is an arbitrary meridian (a line of longitude) in a geographic coordinate system at which longitude is defined to be 0°. Together, a prime meridian and its anti-meridian (the 180th meridian in a 360°-system) form a great ...
of the planet, a status formerly held by
Eve Crater until relocated.
JPL "What's in a Name"
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References
External links
Ariadne at the Gazetteer of Planetary Nomenclature
Ariadne at the Venus Crater Database
Impact craters on Venus
Prime meridians
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