Astronomical calendar. 2023

The first part of the almanac gives the 2023 calendar, description of calendar systems used by various peoples in the world, ephemerides for the Sun, the Moon, and planets, moments of rising and setting for the Sun and the Moon, planetary configurations, the visibility of planets and Jupiter’s satellites on the sky, some data on variable stars, comets, occultations of stars by the Moon and asteroids, meteor showers, eclipses, and other celestial phenomena. The second part informs us on memorable dates in history of astronomy and cosD monautics. The almanac may be used as a handbook by specialists in astronomy and relaD ted sciences, by school teachers, students, pupils, amateur astronomers etc.