radio astronomy radiometer

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• radio telescope — Astron. a system consisting of an antenna, either parabolic or dipolar, used to gather radio waves emitted by celestial sources and bring them to a receiver placed in the focus. [1925 30] * * * Combination of radio receiver and antenna, used for… …   Universalium

• 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

• Timeline of cosmic microwave background astronomy — Timeline of cosmic microwave background astronomyThermal (non microwave background) temperature predictions* 1896 Charles Edouard Guillaume estimates the radiation of the stars to be 5.6K. [Guillaume, C. E., 1896, La Nature 24, series 2, p. 234,… …   Wikipedia

• Cosmic microwave background radiation — CMB and Cosmic background radiation redirect here. For other uses see CMB (disambiguation) and Cosmic background (disambiguation). Physical cosmology …   Wikipedia

• Observational cosmology — Physical cosmology Universe · Big Bang …   Wikipedia

• telescope — /tel euh skohp /, n., adj., v., telescoped, telescoping. n. 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens… …   Universalium

• Voyager-1 — Künstlerische Darstellung von Voyager im All Missionsziel Untersuchung der Planeten Saturn und Jupiter, sowie deren Monde Auftraggeber …   Deutsch Wikipedia

• Voyager1 — Voyager 1 Künstlerische Darstellung von Voyager im All Missionsziel Untersuchung der Planeten Saturn und Jupiter, sowie deren Monde Auftraggeber …   Deutsch Wikipedia

• Voyager 1 — Künstlerische Darstellung der Voyager Sonde im All NSSDC ID 1977 084A Missionsziel Untersuchung der Planeten Saturn und Jupiter, sowie deren Monde …   Deutsch Wikipedia

• Voyager 2 — Künstlerische Darstellung der Voyager Sonde im All NSSDC ID 1977 076A Missionsziel Untersuchung der Planeten Saturn und Jupiter, sowie deren Monde (später auf Uranus und N …   Deutsch Wikipedia

• Hydrogen line — For hydrogen lines in general, see Hydrogen spectral series. The hydrogen line, 21 centimeter line or HI line refers to the electromagnetic radiation spectral line that is created by a change in the energy state of neutral hydrogen atoms. This… …   Wikipedia