Tags: Star.
RX J1856.5-3754 (also called RX J185635-3754 RX J185635-375 and various other designations) is a nearby neutron star in the constellation Corona Australis. It is believed to have been created by a supernova explosion of its companion star about one million years ago and is moving at 108 km/s across the sky. It was discovered in 1992 and observations in 1996 appeared to confirm that it was a neutron star the closest neutron star to Earth yet discovered.
