|either of the two times a year when the sun is at its greatest distance from the celestial equator that takes place about June 21 and about December 22|
|one of several hundred known celestial objects, generally believed to be rapidly rotating neutron stars, that emit pulses of radiation such as radio waves with a high degree of regularity|
The Roman god of doors and gateways and hence of beginnings.
Note: Janus was pictured with two faces looking in opposite directions, one young and one old. Consequently, a hypocritical person is often called “Janus-faced.”
Note: The month of January is named after Janus.