C) CCDs can document the colours of astronomical objects accurately while film can’t. D) CCDs can be connected to trendy telescopes more simply than can photographic movie. Why do astronomers want totally different telescope designs to look at throughout the electromagnetic spectrum? A) New telescopes incorporate new technology to extend their efficiency. B) Telescopes should adapt to the larger distortion of the environment at shorter wavelengths. C) Photons of different power behave differently and require totally different assortment methods.
B) It permits two or extra telescopes to acquire the angular resolution of a single telescope much larger than any of the person telescopes. C) It allows us to discover out the chemical composition of stars. D) It allows astronomers to make astronomical observations without interference from gentle pollution. E) It permits the identical telescope to make photographs with each radio waves and visual gentle. B) It permits us to determine the chemical composition of stars.
D) Telescopes collect extra mild and are unaffected by twinkling. E) Telescopes can see farther with out image distortion and may report extra correct colours. B) They are always useful for seeing through things. C) They are always what is a dub of weed displayed with north pointing upward within the images. D) They are at all times displayed with the highest possible angular decision. A) Telescopes can see farther with out picture distortion and can document more correct colours.
D) It is a unit used by astronomers to measure angular resolution. A) If you try to look at an image that is not shaped on the focal plane, it is going to be blurry. B) The focal plane of a reflecting telescope is at all times situated within a couple of inches of the first mirror. C) In a healthy eye, light is focused on the retina. D) Film must be positioned at the focal plane in a digital camera. D. Radio wavelengths are a lot larger than visible mild wavelengths, thus tolerances for optical surfaces are a lot much less severe.
Observatory Y is an interferometer consisting of 5 10-meter telescopes, spread out over a area 100 meters throughout. Which observatory can detect dimmer stars, and which one can see extra detail in its images? B) Observatory Y can detect dimmer stars and Observatory X reveals extra detail in images.
C) If you strive to take a glance at a picture that isn’t fashioned on the focal aircraft, it will be blurry. D) The focal aircraft of a reflecting telescope is at all times situated within a couple of inches of the primary mirror. E) Light may be centered with a lens or a mirror. T/f X rays from astronomical objects can solely be detected from telescopes in space. Telescopes operating at this wavelength have to be cooled to watch faint astronomical objects.
Suppose the angular separation of two stars is smaller than the angular decision of your eyes. A) You won’t be able to see these two stars in any respect. B) The two stars will look like a single level of sunshine. C) The two stars will seem like touching, wanting somewhat like a small dumbbell.
