equatorial diameter

См. также в других словарях:

• equatorial — Situated, like the earth s equator, equidistant from each end. * * * equa·to·ri·al .ē kwə tōr ē əl, .ek wə , tȯr adj 1) of, located at, or relating to an equator <equatorial diameter> 2) extending in a direction essentially in the plane of …   Medical dictionary

• Equatorial mount — An equatorial mount is a mount that has one rotational axis parallel to the Earth s axis of rotation [cite web | url = http://www.astrogea.org/soldevilla/las monturas.htm | title = LAS MONTURAS | publisher = Observatorio J. A. Soldevilla] [cite… …   Wikipedia

• Equatorial ring — An Equatorial ring was an astronomical instrument used in the Hellenistic world to determine the exact moment of the spring and autumn equinoxes. Equatorial rings were placed before the temples in Alexandria, in Rhodes, and perhaps in other… …   Wikipedia

• Equatorial bulge — An equatorial bulge is a bulge which a planet may have around its equator, distorting it into an oblate spheroid. The Earth has an equatorial bulge of 42.72 km (26.5 miles) due to its rotation: its diameter measured across the equatorial plane… …   Wikipedia

• Jupiter — This article is about the planet. For other uses, see Jupiter (disambiguation). Jupiter   …   Wikipedia

• Accommodation (eye) — Accommodation is the process by which the increases optical power to maintain a clear image (focus) on an object as it draws near the eye. The young human eye can change focus from distance to 7 cm from the eye in 350 milliseconds. This dramatic… …   Wikipedia

• Saturn — /sat euhrn/, n. 1. an ancient Roman god of agriculture, the consort of Ops, believed to have ruled the earth during an age of happiness and virtue, identified with the Greek god Cronus. 2. Astron. the planet sixth in order from the sun, having an …   Universalium

• Dwarf planet — Not to be confused with Minor planet. Ceres as seen with the Hubble Space Telescope. It is the only dwarf planet in the asteroid belt …   Wikipedia

• Neptune — /nep toohn, tyoohn/, n. 1. the ancient Roman god of the sea, identified with the Greek god Poseidon. 2. the sea or ocean: Neptune s mighty roar. 3. Astron. the planet eighth in order from the sun, having an equatorial diameter of 30,200 mi.… …   Universalium

• Geographic coordinate system — Map of Earth showing lines of latitude (horizontally) and longitude (vertically), Eckert VI projection; large version (pdf, 3.12MB) …   Wikipedia

• neptune — /nep toohn, tyoohn/, n. any whelk of the genus Neptunea, esp. N. decemcostata, common along the eastern coast of North America and having a shell with seven to ten raised reddish brown spiral ridges on a pale beige or yellow background. [ < NL… …   Universalium