telescopes – Page 21 – National Radio Astronomy Observatory

How to Calculate Heliocentric Julian Date from a Given Julian Date and Object RA/Dec

Question: What is the algorithm for calculating Heliocentric Julian date from a given Julian date and object RA/Dec? I…

Question: Hi. Would you do me a favor to send to me through email the old aerial view graphic…

Question: How much interference do the radio telescopes receive from EME propagation (Earth-Moon-Earth), and is it really a problem?…

Question: I am purchasing my first telescope and for good viewing of Saturn, Mars, Jupiter and the Moon, am…

Question: Which type of antenna arrays are used in ALMA site? — Aloka Answer: You can get the answer…

Question: How do very large antenna arrays synchronize with each other and why VLAs are used? — Aloka Answer:…

The National Radio Astronomy Observatory is a facility of the U.S. National Science Foundation operated under cooperative agreement by Associated Universities, Inc.
	Founded in 1956, the NRAO provides state-of-the-art radio telescope facilities for use by the international scientific community. NRAO telescopes are open to all astronomers regardless of institutional or national affiliation. Observing time on NRAO telescopes is available on a competitive basis to qualified scientists after evaluation of research proposals on the basis of scientific merit, the capability of the instruments to do the work, and the availability of the telescope during the requested time. NRAO also provides both formal and informal programs in education and public outreach for teachers, students, the general public, and the media.
	The U.S. National Science Foundation (NSF) is an independent federal agency created by Congress in 1950 "to promote the progress of science; to advance the national health, prosperity, and welfare; to secure the national defense..."
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