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luminosity photometer

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  • List of astronomy acronyms — This is a compilation of acronyms commonly used in astronomy. Most of the acronyms are drawn from professional astronomy and are used quite frequently in scientific publications. However, a few of these acronyms are frequently used by the general …   Wikipedia

  • Star — For other uses, see Star (disambiguation) …   Wikipedia

  • eye, human — ▪ anatomy Introduction  specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit       The eye is protected from mechanical injury… …   Universalium

  • Light — (Roget s Thesaurus) < N PARAG:Light >N GRP: N 1 Sgm: N 1 light light ray beam stream gleam streak pencil Sgm: N 1 sunbeam sunbeam moonbeam Sgm: N 1 aurora aurora GRP: N 2 …   English dictionary for students

  • Cygnus X-1 — For other uses, see Cygnus X 1 (disambiguation). HDE 226868 HDE 226868 (not shown) is located next to the star η (lower center) in this map of constellation Cygnus …   Wikipedia

  • Lalande 21185 — Starbox begin name = Lalande 21185Starbox observe epoch = J2000.0 constell = Ursa Major ra = RA|11|03|20.2 dec = RA|+35|58|11 appmag v = 7.47Starbox character class = M2V r i = v r = b v = 1.51 u b = 1.13 variable = Flare starStarbox astrometry… …   Wikipedia

  • Photometry (astronomy) — Photometry is a technique of astronomy concerned with measuring the flux , or intensity of an astronomical object s electromagnetic radiation. Usually, photometry refers to measurement over large wavelength bands of radiation; but, when not only… …   Wikipedia

  • Physical Sciences — ▪ 2009 Introduction Scientists discovered a new family of superconducting materials and obtained unique images of individual hydrogen atoms and of a multiple exoplanet system. Europe completed the Large Hadron Collider, and China and India took… …   Universalium

  • Rumford , Benjamin Thompson, Count — (1753–1814) American–British physicist Benjamin Thompson was the son of a farmer from Woburn, Massachusetts. He started his career apprenticed to a merchant but was injured in a fireworks accident and moved to Boston. In 1772 he married a rich… …   Scientists

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