radio-astronomy

listen to the pronunciation of radio-astronomy
Englisch - Türkisch
radyoastronomi
radyogökbilimi
Englisch - Englisch
branch of astronomy that deals with the study of heavenly bodies by means of radio waves
The branch of astronomy which utilizes radio waves through the use of radio telescopes to study celestial bodies and occurrences

Relevante Übersetzungen

radioastronomy
Alternative spelling of radio astronomy
radio and radar astronomy
Study of celestial bodies by measuring the energy they emit or reflect at radio wavelengths. It began in 1931 with Karl Jansky's discovery of radio waves from an extraterrestrial source. After 1945, huge dish antennas, improved receivers and data-processing methods, and radio interferometers let astronomers study fainter sources and obtain greater detail. Radio waves penetrate much of the gas and dust in space, giving a much clearer picture of the centre and structure of the Milky Way Galaxy than optical observation can. This has allowed detailed studies of the interstellar medium in the Galaxy and the discovery of previously unknown cosmic objects (e.g., pulsars, quasars). In radar astronomy, radio signals are sent to near-Earth bodies or phenomena (e.g., meteor trails, the Moon, asteroids, nearby planets) and the reflections detected, providing precise measurement of the objects' distances and surface structure. Because radar waves can penetrate even dense clouds, they have provided astronomers' only maps of the surface of Venus. Radio and radar studies of the Moon revealed its sandlike surface before landings were made. Radio observations have also contributed greatly to knowledge about the Sun. See also radio telescope
radio astronomy
Radio astronomy is a branch of science in which radio telescopes are used to receive and analyse radio waves from space. The branch of astronomy that deals with the origin and nature of emissions from extraterrestrial sources in the radio wave range of electromagnetic radiation rather than in the visible range.radio astronomer n
radio astronomy
the branch of astronomy that detects and studies the radio waves emitted by celestial bodies