angular resolution
121Radio telescope — A radio telescope is a form of directional radio antenna used in radio astronomy and in tracking and collecting data from satellites and space probes. In their astronomical role they differ from optical telescopes in that they operate in the… …
122Mount Wilson Observatory — The 100 inch (2,500 mm) Hooker telescope that Edwin Hubble used to discover the general expansion of the universe …
123Sunyaev-Zel'dovich effect — The Sunyaev Zel dovich effect (often abbreviated as the SZ effect) is the result of high energy electrons distorting the cosmic microwave background radiation (CMB) through inverse Compton scattering, in which some of the energy of the electrons… …
124Infrared Space Observatory — Infobox Space Telescope name = Infrared Space Observatory background = caption = organization = European Space Agency (ESA) major contractors = Aerospatiale (currently Thales) alt names = nssdc id = 1995 062A location = In decaying orbit orbit… …
125Transit of Earth from Saturn — A transit of Earth across the Sun as seen from Saturn takes place when the planet Earth passes directly between the Sun and Saturn, obscuring a small part of the Sun s disc for an observer on Saturn. During a transit, Earth can be seen from… …
126Faint Object Camera — The Faint Object Camera (FOC) was a camera installed on the Hubble Space Telescope from launch in 1990 until 2002. It was replaced by the Advanced Camera for Surveys.The camera was built by Dornier GmbH and was funded by the European Space Agency …
127ROSAT — (short for Röntgensatellit) was a German X ray satellite telescope. It was named in honour of Wilhelm Röntgen. It was launched on June 1 1990 with a Delta II rocket from Cape Canaveral, and operated until February 12 1999.From the NASA… …
128McMath-Pierce Solar Telescope — The McMath Pierce Solar Telescope in Tucson, Arizona. Organization National Solar Observatory …
