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1) light-gethering power, 2) resolving power, and 3) magnifying power
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What do astronomers use to map the shape of the Milky Way?
Astronomers use radio telescopes, infrared telescopes, and space-based telescopes to map the shape of the Milky Way. They measure the positions and motions of stars, gas, and dust to create a three-dimensional map of our galaxy.
What are the types of telescopes that are used for astronomical observation?
The three major types are the optical, the infrared, and the radio telescopes. There are other specialized instruments for observing gamma rays, or x-rays, or for doing processes such as interferometry. Among the optical telescopes are the refracting (lens), reflecting (mirror) and compound telescopes (computer-assisted combinations of several smaller telescopes to simulate a much larger one).
What kinds of problems occur with optical telescopes list three ways scientist have worked around these problems?
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What are 3 basic categories of astronomical observation?
The three basic categories of astronomical observation are optical, radio, and space-based. Optical observations involve using telescopes to detect visible light; radio observations involve detecting radio waves from celestial objects; space-based observations are done using telescopes and satellites positioned outside Earth's atmosphere to observe different wavelengths of light.
What are three size dependent physical properties?
Three size-dependent physical properties are surface area, melting point, and optical properties (such as color or transparency). These properties can change as the size of a material decreases, leading to different behaviors and characteristics at the nanoscale.
What are some telescopes names?
The two types are refractor and reflector. In a refracting telescope, the light comes in THROUGH a magnifying LENS where it is REFRACTED (bent) to focus the light into an objective lens. In a reflecting telescope, the light BOUNCES OFF a curved magnifying MIRROR , and then reflected again on a secondary mirror to direct the light into an objective lens. Among the advantages of a reflecting telescope are that in a refracting lens, the thickness of the lens can absorb some of the light, while a mirror reflects all of the light. Additionally, a reflecting telescope can "fold" the telescope into a much more compact instrument, which is essential with especially large devices. A large refracting telescope would be enormously heavy and cumbersome.
What are three different types of scientist?
Astronomers. Biologists. Chemists.
How long have astronomers been trying to find out what the sun orbits?
For two or three hundred years, astronomers have had a fair idea the the Sun is not the center of the Universe.
What are three types of optical discs?
cd, dvd, and vcd
What are the three properties of color?
The three properties of color are the spectrum, the chromaticity, and the primary colors
What are the three properties for addition?
the three basic properties in addition are associative, indentity,and commutative.
What are the three types of optical illusions?
Like when you are driving down the road on a hot day and up ahead in the road it looks wet, but when you get there it's not. That's a Mirage or an optical illusion.An example of an optical illusion due to refraction is the formation of rainbow caused by action of water droplets as prism.
