- Binary Star § Astrometric binaries (Wikipedia)
Astronomers have discovered some stars that seemingly orbit around an empty space. Astrometric binaries are relatively nearby stars which can be seen to wobble around a point in space, with no visible companion. The same mathematics used for ordinary binaries can be applied to infer the mass of the missing companion. The companion could be very dim, so that it is currently undetectable or masked by the glare of its primary, or it could be an object that emits little or no electromagnetic radiation, for example a neutron star.
- Saint Timothy (Wikipedia)
Timothy or Timothy of Ephesus (Greek: Τιμόθεος; Timótheos, meaning “honouring God” or “honoured by God”) was an early Christian evangelist and the first Christian bishop of Ephesus, who tradition relates died around the year AD 97.