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While you don’t always need special gadgets to watch celestial events light up the sky, telescopes and binoculars allow you to get a better look at space-related phenomena. The summer is filled ...
The four naked-eye planets should be clear to anybody — even in the city if you have binoculars. "You'll see these bright stars, and most of them are planets," Bartlett said. Read the original ...
"The planets will orbit the sun in roughly the same plane (called the ecliptic plane), and at certain times, like we’ll see in June, their positions line up in a way that makes them look to us ...
An astronomical instrument is a device for observing, measuring or recording astronomical data.They are used in the scientific field of astronomy, a natural science that studies celestial objects and the phenomena that occur in the cosmos, with the object of explaining their origin and evolution over time.
The oldest form of astronomy, optical or visible-light astronomy, observes wavelengths of light from approximately 400 to 700 nm. [149] Positioning an optical telescope in space eliminates the distortions and limitations that hamper that ground-based optical telescopes (see Astronomical seeing ), providing higher resolution images.
The small exit pupil of a 25×30 telescope and large exit pupils of 9×63 binoculars, the latter suitable for use in low light. Binoculars concentrate the light gathered by the objective into a beam, of which the diameter, the exit pupil, is the objective diameter divided by the magnifying
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