- mean longitude of the epoch
- Космонавтика: средняя долгота эпохи
Универсальный англо-русский словарь. Академик.ру. 2011.
mean longitude of the epoch
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Mean longitude — In astrodynamics or celestial dynamics, mean longitude is the longitude at which an orbiting body could be found if its orbit were circular, and free of perturbations, and if its inclination were zero. Both the mean longitude and the true… … Wikipedia
Epoch (astronomy) — In astronomy, an epoch is a moment in time used as a reference for the orbital elements of a celestial body. [cite book|last=Soop|first=E. M.|title=Handbook of Geostationary Orbits|publisher=Springer|date=1994|isbn=9780792330547] Typically, the… … Wikipedia
Mean anomaly — In celestial mechanics, the mean anomaly is a parameter relating position and time for a body moving in a Kepler orbit. It is based on the fact that equal areas are swept at the focus in equal intervals of time. The mean anomaly increases… … Wikipedia
Longitude — For Dava Sobel s book about John Harrison, see Longitude (book). For the adaptation of Sobel s book, see Longitude (TV series). Map of Earth Longitude (λ) Lines of longitude appear vertical with varying curvature in this projection, but are… … Wikipedia
epoch — /ep euhk/ or, esp. Brit., /ee pok/, n. 1. a particular period of time marked by distinctive features, events, etc.: The treaty ushered in an epoch of peace and good will. 2. the beginning of a distinctive period in the history of anything: The… … Universalium
epoch — /ˈipɒk / (say eepok), /ˈɛpɒk / (say epok) noun 1. a particular period of time as marked by distinctive character, events, etc. 2. the beginning of any distinctive period in the history of anything. 3. a point of time distinguished by a particular …
Exact sciences (The) in Hellenistic times: texts and issues — The exact sciences in Hellenistic times: Texts and issues1 Alan C.Bowen Modern scholars often rely on the history of Greco Latin science2 as a backdrop and support for interpreting past philosophical thought. Their warrant is the practice… … History of philosophy
Secular variations of the planetary orbits — The Secular Variations of the Planetary Orbits (French: Variations Séculaires des Orbites Planétaires, abbreviated as VSOP) is a semi analytic theory describing the long term changes (secular variation) in the orbits of the planets Mercury to… … Wikipedia
Orbit of the Moon — Not to be confused with Lunar orbit in the sense of a selenocentric orbit, that is, an orbit around the Moon The Moon completes its orbit around the Earth in approximately 27.3 days (a sidereal month). The Earth and Moon orbit about their… … Wikipedia
Newcomb's Tables of the Sun — is the short title and running head of a work by the American astronomer and mathematician Simon Newcomb entitled Tables of the Motion of the Earth on its Axis and Around the Sun on pages 1–169 of Tables of the Four Inner Planets (1895),[1]… … Wikipedia
Greenwich Mean Time — ➡ GMT. * * * the name for mean solar time of the longitude (0°) of the Royal Greenwich Observatory in England. The meridian at this longitude is called the prime meridian or Greenwich meridian. Greenwich Mean Time was used for clearly … Universalium
