Gourt > Science > Astronomy > Amateur > Radio Astronomy
Radio astronomy is the study of celestial phenomena through measurement of the characteristics of radio waves emitted by physical processes occurring in space. Radio waves are much longer than light waves. In order to receive good signals, radio astronomy requires large antennas, or arrays of smaller antennas all working together (The Very Large Array near Socorro, New Mexico is an example of this). Most radio telescopes use a parabolic dish to reflect the waves to a receiver which detects and amplifies the signal into usable data. This allows astronomers to see a region of the radio sky. If they take multiple scans of overlaping strips of the sky they can piece together an image ('mosaicing'). Radio astronomy is a relatively new field of astronomical research that still has much more to be discovered.
History
Nikola Tesla in the Colorado Springs lab recorded cosmic waves emitting from interstellar clouds and red giant stars. He observed repeating signals conducted by his transceiver. He announced that he received extraterrestrial radio signals. Tesla stated that he received signals from planets in some of the scientific journals of the time. The scientific community did not believe him, primarily because research of cosmic signals did not exist (what is known today as radio astronomy), and the community of science rejected Tesla's data. Tesla spent the latter part of his life trying to signal Mars. More on [ Radio astronomy ]
Amateur :: Radio
Radio :: Observatories
RT @ASTRON_LOFAR #STFC UK cuts - here ends a very dark and dismal day for international collaboration in radio astronomy... where to now?
cecilia_vdm (Cecilia vd Merwe) Thu, 17 Dec 2009 03:53:01 -0000
RT @ASTRON_LOFAR #STFC UK cuts - here ends a very dark and dismal day for international collaboration in radio astronomy... where to now?
RT @AstronomyFM: Now on AFM*Radio. Up-to-the-minute astronomy news & an interview w/ Mt. Wilson's Director! 0200UT (9pmET) http://ow.ly/M6Gm
TaviGreiner (tavianne) Thu, 17 Dec 2009 02:02:35 -0000
RT @AstronomyFM: Now on AFM*Radio. Up-to-the-minute astronomy news & an interview w/ Mt. Wilson's Director! 0200UT (9pmET) http://ow.ly/M6Gm
The SkyGuide! Now on AFM*Radio. Up-to-the-minute astronomy news & an interview with Mt. Wilson's Director! 0200UT (9pmET) http://ow.ly/M6Gm
AstronomyFM (Astronomy FM) Thu, 17 Dec 2009 02:00:47 -0000
The SkyGuide! Now on AFM*Radio. Up-to-the-minute astronomy news & an interview with Mt. Wilson's Director! 0200UT (9pmET) http://ow.ly/M6Gm
#STFC UK cuts - here ends a very dark and dismal day for international collaboration in radio astronomy... where do we go from here?
ASTRON_LOFAR (ASTRON - M.A.Garrett) Wed, 16 Dec 2009 21:32:39 -0000
#STFC UK cuts - here ends a very dark and dismal day for international collaboration in radio astronomy... where do we go from here?
The Radio Astronomy Team at GPSHS holds its 20th anniversary celebration Saturday. Deets: http://bit.ly/6wKguV
GPToday (GPToday) Wed, 16 Dec 2009 15:35:33 -0000
The Radio Astronomy Team at GPSHS holds its 20th anniversary celebration Saturday. Deets: http://bit.ly/6wKguV
Had a good time on Astronomy.FM radio recounting 100 Telescopes In The Park event for #iya2009
astrosetz (Jeff Setzer) Wed, 16 Dec 2009 05:12:36 -0000
Had a good time on Astronomy.FM radio recounting 100 Telescopes In The Park event for #iya2009
Society of Amateur Radio Astronomers - Dedicated enthusiasts who teach, learn, trade technical information, and do observations of the radio sky.
Meta Description: [ Website of the Society of Amateur Radio Astronomers, Inc., a membership-supported, nonprofit [501(c)(3)] educational and scientific corporation. ]
Community Development Institute - A non-profit organization dedicated to the search for extra-terrestrial intelligence. Located in Brisbane, Australia.
Amateur Radio Astronomy - Construction of the antenna, system descriptions, objectives, typical results, and references.
Meta Description: [ 1420 Mhz Radio Astronomy Project ]
Amateur SETI - Equipment information with images, software and manual, formulas, javascript calculator, readings, sample data plots, glossary, and links.
Amateur SETI - Project BAMBI - Design, construction, and initial observational results of a 4-GHz amateur radio telescope with circuit board layouts, software, and schematics.
Basics of Radio Astronomy - Workbook developed to support training for the Goldstone-Apple Valley Radio Telescope, but can be applied to all.
Big Ear Radio Observatory - No longer in operation, and includes a beginner's guide, facility and equipment information, press releases, and slide shows.
Meta Description: [ This Kraus-type radio telescope,
larger than three football fields, was famous for the Wow! Signal and
for the longest-running SETI project. ]
EME, SETI, Radio Astronomy, DSP, and Radio Amateurs - Dedicated to building bridges between amateur groups and the promotion and preservation of weaksignal communication.
John Mckay's Astronomy Website - Radio telescope project with diagram and graphs.
Meta Description: [ An amateur radio telescope in the Yorkshire Dales. The telescope will be fully steerable when completed. ]
404
JupiterRadio - Dedicated to observing and analyzing natural decametric radio emissions from Jupiter and the sun.
Meta Description: [ Jupiter Radio Astronomy - Information about Planetary Radio Emissions and the RadioJOVE Jupiter Radio Telescope ]
Multi-SETI@Home Monitor - Graphical add-on package to monitor activity that may be running on multiple computers over a network or multiple instances on the same computer.
National Radio Astronomy Observatory - Current events, public outreach, very large array, VLA expansion project, and very long baseline array.
Pisgah Astronomical Research Institute - Dedicated to providing research and educational access to radio and optical astronomy for a broad cross-section of users.
Meta Description: [ Where Science Excites the Imagination. ]
Radio Astronomy - How to start, audio and sound files, projects, and basic equipment information.
Meta Description: [ Menu - Radioastronomy ]
Radio-Sky Publishing - Provides software (some free), books, and hands-on projects within areas of Jupiter, the Sun, Pulsars, and other areas.
500
SCSU Radio Astronomy - Reports progress on their small-dish projects with resource links.
The European Radio Astronomy Club - Observations, workshop, groups, telescopes and images, and radar links.
Meta Description: [ Web site of ERAC - The European Radio Astronomy Club which was founded as a nonprofit
making organization who's aim it is to coordinate individuals and groups together
with scientific research establishment to aid in research of Radio Astronomy ]
United Kingdom Amateur Radio Astronomy Network - Amateur radio astronomy mainly for, but not limited to, the United Kingdom, providing information for beginners, project ideas, articles, and downloadable archive material.
| Astronomy | |
| Next Video | |
