Jayzeo

An energetic pulsar with a rotational period of exactly τ/2 seconds.
It's official designition is PSR J0000+00, but is commonly known as "J-Zero", or "Jayzeo" by the sparse inhabitants of the The Lost Expanse. It is used as the navigational origin point of the region, with all stellar coordinates being measured in terms of Right Ascension, Declination, and Distance from the pulsar.