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Radio astronomy is a subfield of astronomy that studies celestial objects at radio frequencies. The first detection of radio waves from an astronomical object was in 1933, when Karl Jansky at Bell Telephone Laboratories reported radiation coming from the Milky Way .
The Lunar Crater Radio Telescope (LCRT) is a proposal by the NASA Institute for Advanced Concepts to create an ultra-long-wavelength (hereby wavelengths greater than 10 m – i.e., frequencies below 30 MHz) radio telescope inside a lunar crater on the far side of the Moon. Square Kilometer Array (SKA-Phase2) Australia, South Africa 0.05–30 GHz
Some of the more notable frequency bands used by radio telescopes include: Every frequency in the United States National Radio Quiet Zone; Channel 37: 608 to 614 MHz; The "Hydrogen line", also known as the "21 centimeter line": 1,420.40575177 MHz, used by many radio telescopes including The Big Ear in its discovery of the Wow! signal
A map showing the extent of the United States National Radio Quiet Zone. A radio quiet zone is an area where radio transmissions are restricted in order to protect a radio telescope [1] or a communications station [2] from radio frequency interference.
The Very Long Baseline Array usually makes radio observations at wavelengths from three millimeters to 90 centimeters, or in other words, at frequencies from 0.3 gigahertz to 96 gigahertz. Within this frequency range, the VLBA observes in eight different frequency bands that are useful for radio astronomy. The VLBA also makes observations in ...
The mission of LOFAR is to map the Universe at radio frequencies from ~10–240 MHz with greater resolution and greater sensitivity than previous surveys, such as the 7C and 8C surveys, and surveys by the Very Large Array (VLA) and Giant Meterwave Radio Telescope (GMRT).
It is a popular observing frequency used by radio telescopes in radio astronomy. [1] The strongest hydroxyl radical spectral line radiates at 18 centimeters, and atomic hydrogen at 21 centimeters (the hydrogen line).
S. Sagamore Hill Radio Observatory; San Pedro Valley Observatory; São Gião Radio Telescope; Sardinia Radio Telescope; Siberian Solar Radio Telescope; Solar Submillimeter Telescope