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quasars
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When should you use light years?
Light years are used to measure distance from Earth to distant stars and planets.
5 How is the radio astronomy use to locate and map star and others heavenly body?
When we look at the night sky and see the stars we are only seeing a small part of what is actually being given off by the stars. Stars give off radio waves as well as visible light so radio telescopes are able to detect the radio waves and create maps of the sky based on their locations.
Is a satellite dish a form of radio telescope or antenna?
A radio telescope gathers and focuses radio waves, or electromagnetic waves outside the visual spectrum. A satellite telescope is sent outside the atmosphere to become a satellite of either the earth or sun, unless it is sent outside the solar system like the Voyager spacecraft. Many satellite telescopes carry several types of telescopes in one package to gather as much information as possible, like the Hubble.
In what sense are the quasars quasi-stellar?
A quasar is an abbreviated term for quasi-stellar radio sources.Quasi - means something resembling or having a likeness to.Stellar - means pertaining to, or characteristic of starsThe first "quasars" were discovered using radio telescopes in the late 1950s. Many were recorded as radio sources with no corresponding visible object.So they became known as a radio source resembling something like a star, or quasi-stellar radio sources.It was not until 1964 when they became known as quasars."So far, the clumsily long name 'quasi-stellar radio sources' is used to describe these objects. Because the nature of these objects is entirely unknown, it is hard to prepare a short, appropriate nomenclature for them so that their essential properties are obvious from their name. For convenience, the abbreviated form 'quasar' will be used throughout this paper.-- Hong-Yee Chiu in Physics Today, May, 1964"
What type of radio sounds do radio telescopes hear?
Stars broadcast from x-rays down through infrared, and radio telescopes take advantage of this by tuning in to the emissions, dubbed "radio" to differentiate from "optical" here, not because the star is necessarily being monitored in our "radio" spectrum.
How are the lights at the stadium similar to stars in the sky?
Because there are a lots of lights in the stadium.
When was Distant Stars created?
Distant Stars was created in 1981.
How many pages does Distant Stars have?
Distant Stars has 352 pages.
Reasons why astronomers have difficulty looking at distant stars except?
Light years of dust lanes obscure the view of distant stars in visible light. However, radio telescopes can penetrate the dust and can detect (in the x-ray and infrared spectra) the stars in the core of our galaxy.They don't understand how redshift affects stars.
What is a qazar?
Quasar.From Wikipedia:A quasi-stellar radio source (quasar) is a very energetic and distant galaxy with an active galactic nucleus. Quasars were first identified as being high redshift sources of electromagnetic energy, including radio waves and visible light, that were point-like, similar to stars, rather than extended sources similar to galaxies.http://en.wikipedia.org/wiki/Quasar
What type of telescope detects energy thats outside the visible spectrum?
Radio telescopes are designed to detect sources of electromagnetic radiation such as x-rays or other invisible emissions. They detect electromagnetic radiation from distant galaxies, including stars and planets and other astronomical radio sources. They are usually in the form of large parabolic antennas, sometimes with hundreds linked together in enormous arrays, connected to extremely sensitive radio frequency receivers.
Which of the following is not a reason that astronomers have trouble viewing distant stars?
Distant stars give off less light
What is a super heated quasar?
Quasars or quasi-stellar radio sources are the most energetic and distant members of a class of objects called active galactic nuclei (AGN). Quasars are extremely luminous and were first identified as being high redshift sources of electromagnetic energy, including radio waves and visible light, that appeared to be similar to stars, rather than extended sources similar to galaxies. They cannot escape a black hole. Only Hawking Radiation can escape a black hole.
Which stars resemble a flying horse?
Pegasus
Who first realized that stars were distant suns?
an ancient greek philosipher named Aristotle first developed the theory that stars were distant suns
How can you prove electromagnetic waves travel through vacuums?
- You can see distant stars. - You can feel the warmth of the sun on your face. - You can use radio to communicate with astronauts on the moon and rovers on Mars.
What is the true shape of stars?
Stars are distant suns, which are roughly spherical in shape.
