astronomical distance

См. также в других словарях:

• Astronomical distance — Astronomical distances are distances in outer space, occurring on a much larger scale than those on Earth. For instance, the distance to (Proxima Centauri), the closest star to our solar system, is about 40,000,000,000,000 kilometers.For this… …   Wikipedia

• astronomical distance — enormous distance …   English contemporary dictionary

• Astronomical unit — This article is about unit of length. For the full system of units, see Astronomical system of units. 1 astronomical unit = SI units 149.60×10^6 km 149.60×10^9 m Astronomical units 4.8481 …   Wikipedia

• Astronomical constant — An astronomical constant is a physical constant used in astronomy. The astronomical constants include units of astronomical distance (the astronomical unit (A.U.), the light year (ly), and the parsec (pc)), units of time (the sidereal year, the… …   Wikipedia

• Astronomical Society of the Pacific — Abbreviation ASP Formation 1889 Legal status Non profit organization Purpose/focus scientific research and public education in astronomy Location …   Wikipedia

• Astronomical spectroscopy — is the technique of spectroscopy used in astronomy. The object of study is the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other celestial objects. Spectroscopy can be used to derive many… …   Wikipedia

• astronomical — 1550s, adj. from ASTRONOMY (Cf. astronomy) + ICAL (Cf. ical). Popular meaning immense, concerning very large figures (as sizes and distances in astronomy) is attested from 1899. Astronomical unit (abbrev. A.U.) mean distance from Earth to Sun,… …   Etymology dictionary

• astronomical unit — n. Astron. a unit of length based on the mean distance of the earth from the sun, c. 149.6 million km ( c. 93 million mi): light travels this distance in c. 8.3 minutes: abbrev. AU …   English World dictionary

• astronomical unit — Astron. a unit of length, equal to the mean distance of the earth from the sun: approximately 93 million miles (150 million km). Abbr.: AU [1900 05] * * * ▪ unit of measurement        Comparative data for the Sun, planets, and other solar system… …   Universalium

• Astronomical seeing — Schematic diagram illustrating how optical wavefronts from a distant star may be perturbed by a layer of turbulent mixing in the atmosphere. The vertical scale of the wavefronts plotted is highly exaggerated. Astronomical seeing refers to the… …   Wikipedia

• Astronomical optical interferometry — One of the first astronomical interferometers was built on the Mount Wilson Observatory s reflector telescope in 1920 in order to measure the diameters of stars. The red giant star Betelgeuse was among the first to have its diameter determined in …   Wikipedia