Difference between Radiotelescopes & optical telescopes
ارسال شده: دوشنبه ۱۳۹۲/۹/۱۱ - ۱۶:۳۲
?why Radiotelescopes are better than Optical telescopes
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هوپا، انجمن علم ایران
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Difference between Radiotelescopes & optical telescopes
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Re: Difference between Radiotelescopes & optical telescopes
ارسال شده: سهشنبه ۱۳۹۲/۹/۱۹ - ۱۹:۳۸
Radio telescope
Radio telescopes are used to study radio waves and microwaves between wavelengths of about 10 meters and 1 millimeter emitted by astronomical objects. Radio waves with wavelengths longer than about 10 meters are absorbed and reflected by the Earth's atmosphere and do not reach the ground. Many radio waves shorter than 1 centimeter are also absorbed by the Earth's atmosphere and only a few wavelength bands make it through. Wavelengths between 1 and 20 cm only experience minor distortions while traveling through the atmosphere and signal processing software can be used to correct for these effects.
Optical telescope
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Eight Inch refracting telescope (Chabot Space and Science Center)
optical telescope
An optical telescope is a telescope which is used to gather and focus light mainly from the visible part of the electromagnetic spectrum to directly view a magnified image for making a photograph, or collecting data through electronic image sensors.
There are three primary types of optical telescope: refractors which use lenses (dioptrics), reflectors which use mirrors (catoptrics), and catadioptric telescopes which use both lenses and mirrors in combination.
A telescope's light gathering power and ability to resolve small detail is directly related to the diameter (or aperture) of its objective (the primary lens or mirror that collects and focuses the light). The larger the objective, the more light the telescope can collect and the finer detail it can resolve.
differences
Optical telescopes can not see through the clouds of dust and gases that surround and permeate our galaxy. A radio telescope can. What this means is that a radio telescope can see far further into the universe than an optical telescope.
Radio telescopes are used to study radio waves and microwaves between wavelengths of about 10 meters and 1 millimeter emitted by astronomical objects. Radio waves with wavelengths longer than about 10 meters are absorbed and reflected by the Earth's atmosphere and do not reach the ground. Many radio waves shorter than 1 centimeter are also absorbed by the Earth's atmosphere and only a few wavelength bands make it through. Wavelengths between 1 and 20 cm only experience minor distortions while traveling through the atmosphere and signal processing software can be used to correct for these effects.
Optical telescope
From Wikipedia, the free encyclopedia
Jump to: navigation, search
Eight Inch refracting telescope (Chabot Space and Science Center)
optical telescope
An optical telescope is a telescope which is used to gather and focus light mainly from the visible part of the electromagnetic spectrum to directly view a magnified image for making a photograph, or collecting data through electronic image sensors.
There are three primary types of optical telescope: refractors which use lenses (dioptrics), reflectors which use mirrors (catoptrics), and catadioptric telescopes which use both lenses and mirrors in combination.
A telescope's light gathering power and ability to resolve small detail is directly related to the diameter (or aperture) of its objective (the primary lens or mirror that collects and focuses the light). The larger the objective, the more light the telescope can collect and the finer detail it can resolve.
differences
Optical telescopes can not see through the clouds of dust and gases that surround and permeate our galaxy. A radio telescope can. What this means is that a radio telescope can see far further into the universe than an optical telescope.
Re: Difference between Radiotelescopes & optical telescopes
ارسال شده: سهشنبه ۱۳۹۲/۹/۱۹ - ۲۱:۳۹
nptbprof نوشته شده:Radio telescope
differences
Optical telescopes can not see through the clouds of dust and gases that surround and permeate our galaxy. A radio telescope can. What this means is that a radio telescope can see far further into the universe than an optical telescope.
I hope you will always be successful and healthy. Thanks again a lot.
Re: Difference between Radiotelescopes & optical telescopes
ارسال شده: سهشنبه ۱۳۹۲/۹/۱۹ - ۲۲:۰۶
sharmande mikonin mano ba in tashakoratetunنوری نیرو نوشته شده:I hope you will always be successful and healthy. Thanks again a lot.
