ALL meanings of sidereal time
si·de·re·al time
S s - noun sidereal time time measured by the diurnal motion of stars. A sidereal day is about four minutes shorter than a solar day, with hours, minutes, and seconds all proportionally shorter. 1
- noun sidereal time time based upon the rotation of the earth with respect to the distant stars, the sidereal day being the unit of measurement 0
- noun sidereal time time measured by the sidereal day: it is divided into the sidereal hour (1⁄24 of a sidereal day), the sidereal minute (1⁄60 of a sidereal hour), and the sidereal second (1⁄60 of a sidereal minute) 0
- noun sidereal time the hour angle of the vernal equinox 0