- ecliptic for epoch
- эклиптика на эпоху
English-Russian glossary on space technology. 2015.
ecliptic for epoch
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Ecliptic coordinate system — The ecliptic coordinate system is a celestial coordinate system that uses the ecliptic for its fundamental plane. The ecliptic is the path that the sun appears to follow across the sky over the course of a year. It is also the projection of the… … 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
C/2010 X1 — For beliefs regarding a supposed collision between Earth and Comet Elenin, see Nibiru collision. C/2010 X1 (Elenin) Comet Elenin as seen by the STEREO B spacecraft on August 1st, 2011. Discovery Discovered by: Leonid Elenin 0.45 m reflector (H15) … Wikipedia
Comet Lulin — Not to be confused with 145523 Lulin. For other uses, see Lulin (disambiguation). C/2007 N3 (Lulin) Comet Lulin as seen on January 31st (top) and February 4th of 2009. Discovery Discovered by: Ye Quanzhi, Lin Chi Sheng … Wikipedia
Arctic Circle — This article is about one of the five major circles of latitude. For other uses, see Arctic Circle (disambiguation). World map showing the Arctic Circle in red … Wikipedia
Circle of latitude — Map of Earth Longitude (λ) Lines of longitude appear vertical with varying curvature in this projection, but are actually halves of great ellipses, with identical radii at a given latitude. Latitude (φ) Lines of latitude appear … Wikipedia
Spherical astronomy — or positional astronomy is the branch of astronomy that is used to determine the location of objects on the celestial sphere, as seen at a particular date, time, and location on the Earth. This is one of the oldest branches of astronomy. It… … Wikipedia
Semi-major axis — The semi major axis of an ellipse The major axis of an ellipse is its longest diameter, a line that runs through the centre and both foci, its ends being at the widest points of the shape. The semi major axis is one half of the major axis, and… … Wikipedia
Dorado — This article is about the constellation. For other uses, see Dorado (disambiguation). Dorado Constellation List of stars in Dorado Abbreviation Dor Genitive … Wikipedia
Month — For the Egyptian hawk god, see Monthu. A month is a unit of time, used with calendars, which was first used and invented in Mesopotamia, as a natural period related to the motion of the Moon; month and Moon are cognates. The traditional concept… … 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
