astronomical observations
1Astronomical chronology — Astronomical chronology, or astronomical dating, is a technical method of dating events or artifacts that are associated with astronomical phenomena. Written records of historical events that include descriptions of astronomical phenomena have… …
2Astronomical telescope — Telescope Tel e*scope, n. [Gr. ? viewing afar, farseeing; ? far, far off + ? a watcher, akin to ? to view: cf. F. t[ e]lescope. See {Telegraph}, and { scope}.] An optical instrument used in viewing distant objects, as the heavenly bodies. [1913… …
3astronomical — also astronomic adjective Date: 1556 1. of or relating to astronomy < astronomical observations > 2. enormously or inconceivably large or great < astronomical numbers > • astronomically adverb …
4Astronomical survey — Astronomical surveys generally involve imaging or mapping of regions of the sky using Telescopes. In the past,surveys have been usually restricted to one band of wavelengths of electromagnetic radiation (e.g. light or radio) or to measurements of …
5Astronomical 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… …
6Astronomical Society Of The Pacific — L Astronomical Society of the Pacific (ASP) est fondé à San Francisco en 1889. Elle a un statut d association sans but lucratif. C est la plus importante société savante consacré à l astronomie dans le monde. Elle compte des membres de plus de 70 …
7Astronomical society of the pacific — L Astronomical Society of the Pacific (ASP) est fondé à San Francisco en 1889. Elle a un statut d association sans but lucratif. C est la plus importante société savante consacré à l astronomie dans le monde. Elle compte des membres de plus de 70 …
8Astronomical 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… …
9Astronomical 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 …
10astronomical map — Introduction any cartographic representation of the stars, galaxies, or surfaces of the planets and the Moon. Modern maps of this kind are based on a coordinate system analagous to geographic latitude and longitude. In most cases, modern… …
