Pharos is a crater on Neptune's moon Proteus. It is named after the Lighthouse of Alexandria, also known as the Pharos of Alexandria. It is currently the only named surface feature on any irregularly shaped moon of Neptune. It measures 10–15 km deep and has a diameter of around in diameter, making it more than half the diameter of Proteus itself. The impact that created Pharos may have also created Hippocamp, due to how unusually close it is to Proteus.

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