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The plates were taken using the Samuel Oschin Telescope between 1987 and 1991. Astrophotography, also known as astronomical imaging, is the photography or imaging of astronomical objects, celestial events, or areas of the night sky.
In astronomy, the terms object and body are often used interchangeably. However, an astronomical body or celestial body is a single, tightly bound, contiguous entity, while an astronomical or celestial object is a complex, less cohesively bound structure, which may consist of multiple bodies or even other objects with substructures.
The key instrument of nearly all modern observational astronomy is the telescope. This serves the dual purposes of gathering more light so that very faint objects can be observed, and magnifying the image so that small and distant objects can be observed. Optical astronomy requires telescopes that use optical components of great precision.
The first images from the James Webb Space Telescope are just a preview of the impressive capabilities of NASA’s $10-billion, next-generation observatory. Billed as the successor to the iconic ...
By taking two exposures of the same section of the sky days or weeks apart, it is possible to find objects such as asteroids, meteors, comets, variable stars, novae, and even unknown planets. By comparing the pair of images, using a device such as a blink comparator, astronomers are able to find objects that moved or changed brightness between ...
Historically, optical astronomy, which has been also called visible light astronomy, is the oldest form of astronomy. [58] Images of observations were originally drawn by hand. In the late 19th century and most of the 20th century, images were made using photographic equipment.
Exoplanet (also known as extrasolar planets) – planet outside the Solar System. A total of 4,341 such planets have been identified as of 28 Jan 2021. Super-Earth – exoplanet with a mass higher than Earth's, but substantially below those of the Solar System's ice giants. Mini-Neptune – also known as a gas dwarf or transitional planet. A ...
A space telescope (also known as space observatory) is a telescope in outer space used to observe astronomical objects. Suggested by Lyman Spitzer in 1946, the first operational telescopes were the American Orbiting Astronomical Observatory , OAO-2 launched in 1968, and the Soviet Orion 1 ultraviolet telescope aboard space station Salyut 1 in 1971.
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