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Topic: List of radio telescopes

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Radio telescope

Very Long Baseline Array

Green Bank Telescope

Australia Telescope National Facility

Effelsberg

Arecibo radio telescope

Radio astronomy

Parkes Observatory

Jodrell Bank

Timeline of telescopes, observatories, and observing technology

Goldstone Deep Space Communications Complex

Arecibo Observatory

Hubble Space Telescope

Very Large Array

Canberra Deep Space Communications Complex

	Radio astronomy Summary
		Radio astronomers were eventually able to confirm many of the postulates of stellar evolution with the subsequent identification in the late 1960s of radio pulsars (rapidly spinning neutron stars).
		Radio telescopes, because of the longer wavelength of radio waves compared to that of visible light, gave a "fuzzier" view of the universe than visible-light telescopes.
		Several large and sophicated radio telescopes were constructed, and--due to the fact that both type of telescopes measure manifestations of electromagnetic radiation--engineers quickly discovered that many of the problems associated with optical telescopes were applicable to the development of radio telescopes.
	www.bookrags.com /Radio_astronomy (7038 words)

	Non-U.S. Radio Astronomy Observatories
		Frequency band(s):The DRAO Synthesis Telescope is a wide-field telescope that operates simultaneously in continuum bands at 408 MHz (74 cm) and at 1420 MHz (21 cm) and in 256 channels on the spectral line of atomic hydrogen at 21 cm.
		Telescope: 34 parabolic dishes, 16 of which are in a central cluster of 1 km x 1 km; the rest are along 3 arms of a Y with 6 antennas in each 14-km-long arm
		Telescope: Array with 14 steerable paraboloids (of which 4 are movable and 10 are fixed) on an E-W baseline, operating on the principle of rotational aperture synthesis.
	www.nas.edu /bpa1/NonUS_Radio_Astronomy_Observatories.htm (2442 words)

	Radio Astronomy Frequently Asked Questions
		It is this general lack of familiarity with radio astronomy that gives birth to an array of extremely broad and often difficult to answer questions.
		If you do listen to some of the radio telescope output that has been translated to an audio signal you can hear, it sounds just like the static you hear when your television is tuned to a channel where no station is present.
		It is this broad noise signal that is of interest to radio astronomers who measure it in many ways, but only listen in perhaps to hear what kind of man-made interference is messing up their measurements.
	www.radiosky.com /faq.html (1837 words)

	Radio Astronomy Resources
		The synthesis telescope is particularly suited to comprehensive studies of the interstellar medium, extended Galactic nebulae and star-forming regions, and of nearby galaxies.
		The original low frequency telescope was superseded in 1976 by a 14-m diameter radome-enclosed antenna for use at high radio frequencies (mm wavelengths), built primarily to study the physics and chemistry of interstellar clouds, circumstellar envelopes, planetary atmospheres, and comets.
		The radio telescope at Radio Astronomy at the University of Indianapolis is a 5 meter educational radio telescope.
	cdsweb.u-strasbg.fr /astroweb/radio.html (7277 words)

	It takes more than one kind of telescope to see the light
		Most radio telescopes need to be large in order to accommodate radio's longer wavelengths and lower energies.
		Radio telescopes also need to be large in order to overcome the radio noise, or "snow," that naturally occurs in radio receivers.
		Radio and optical telescopes can be used on Earth, but some resolution is lost due to Earth's atmosphere.
	science.nasa.gov /newhome/headlines/features/ast20apr99_1.htm (2687 words)

	Telescopes (Site not responding. Last check: 2007-10-08)
		The Chandra X-ray Observatory is the U.S. follow-on to the Einstein Observatory.
		The KLENOT telescope was constructed using a 1.06-m primary mirror and a primary focus corrector to obtain a plane field of view 33 x 33 arcminutes.
		Michelle: A mid-infrared spectrometer and imager for the UKIRT and Gemini telescopes
	www.vilspa.esa.es /astroweb/yp_telescope.html (12229 words)

	Bill Keel's Telescope Life List
		To show what kinds of projects can be done with various instruments (at least the kinds I've thought of), here's a gallery of observatories and telescopes I've used with some sample data and results.
		Since astrophysics now has (and needs) access to much of the electromagnetic spectrum, there are optical, infrared, radio, ultraviolet, and X-ray facilities to be found.
		Some images are still to be added, and all the listed sites will eventually have their own information and image pages.
	www.astr.ua.edu /keel/telescopes (368 words)

	Observatories and Telescopes Resources
		On the 2-m telescope, in the RC mode, direct images of extended astronomical objects are obtained on astronomical photographic plates with size up to 30x30 cm2, covering a field 1° x 1°.
		The Gemini North Telescope is located on Hawaii’s Mauna Kea as part of the international community of observatories that have been built to take advantage of the superb atmospheric conditions on this long dormant volcano that rises almost 14,000' into the dry, stable air of the Pacific.
		HST is a 2.4-meter reflecting telescope which was deployed in low-Earth orbit (600 kilometers) by the crew of the space shuttle Discovery (STS-31) on 25 April 1990.
	cdsweb.u-strasbg.fr /astroweb/telescope.html (9231 words)

	Bill Keel's Telescope Life List - NRAO Radio Telescopes
		The NRAO 140-foot telescope towers above the Green Bank landscape, with what is probably the largest equatorial mount ever built (moving weight listed as 2500 tons).
		This was taken after the collapse of the 300-foot telescope, and early in the construction of the Green Bank Telescope.
		The 43-meter telescope is prominent, as is the track containing the three elemenstof the Green Bank interferometer.
	www.astr.ua.edu /keel/telescopes/nrao.html (700 words)

	U.S. Radio Astronomy Observatories
		Remarks: This station is used for VLBI observations for spacecraft navigation, radio astronomy, and geodesy.
		Current radiometers on the west 26-m telescope include the frequencies 1.4 and 1.6 GHz for HI / OH measurements, 4.829 GHz for formaldehyde detection, and 6.668 and 12.178 GHz for methanol detection.
		The 12.2-m telescope has prime focus feeds supporting 6 cm (3.3-4.4 GHz) and 3 cm (10.9-12.75 GHz), and a removable cassegrain subreflector and feed assembly is available for 6-5 cm (6.6-7.7 GHz) operation.
	www.nas.edu /bpa1/US_Radio_Astronomy_Observatories.htm (1301 words)

	Radio Astronomy
		Radio Astronomy at the University of Indianapolis - real time data from their radio telescope
		The SETI League's List Of Major Radio Telescopes
		Radio Telescope Built By An Amateur Radio Astronomer for observation of 1,420 MHz natural radio emissions of neutral hydrogen - (5.2 meter diameter dish, ICOM R-7000 receiver, and a spectrum analyzer)
	www.ualr.edu /clscott/radioastr.html (62 words)

	Radio Astronomy
		imaging of extragalactic radio sources, geodesy and astrometry.
		The primary reference for a description of the survey is: Bock, D., Large, M. and Sadler, E. Taeduk Radio Astronomy Observatory
		The WMAP mission is designed to determine the geometry, content, and evolution of the universe via a 13 arcminute FWHM resolution full sky map of the temperature anisotropy of the cosmic microwave background radiation.
	www.cv.nrao.edu /fits/www/yp_radio.html (7170 words)

	Milky Way Plan Views
		The CGPS is not the only Galactic plane survey (see our
		Radio telescopes in Australia are currently observing the
		Also in the works are proposals to extend the CGPS coverage with a sequel survey (``CGPS 2''), and to fill in the inner Galaxy gap between CGPS2 and SGPS with the Very Large Array (VLA) in New Mexico (``VGPS'').
	www.ras.ucalgary.ca /CGPS/where/plan (936 words)

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