Era – With the help of a certain point in time, which is used by astronomers to indicate the values of various variables, this makes it possible to compare them (for example, the coordinates of the starry sky, the orientation of planetary orbits, the periods of rotation of the Earth). At the moment, the standard epoch J2000 is used in astronomy. She was spotted at noon on January 1, 2000 (January 1.5, 2000 = JD 2451545.0).
Era
127
previous post