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The Saturn Nebula (also known as NGC 7009 or Caldwell 55) is a planetary nebula in the constellation Aquarius. It appears as a greenish-yellowish hue in a small amateur telescope . It was discovered by William Herschel on September 7, 1782, using a telescope of his own design in the garden at his home in Datchet , England , and was one of his ...
The Swedish 1-m Solar Telescope, with a lens diameter of 43 inches, is technically the largest, with 39 inches clear for the aperture.The second largest refracting telescope in the world is the Yerkes Observatory 40 inch (102 cm) refractor, used for astronomical and scientific observation for over a century.
A refracting telescope (also called a refractor) is a type of optical telescope that uses a lens as its objective to form an image (also referred to a dioptric telescope). The refracting telescope design was originally used in spyglasses and astronomical telescopes but is also used for long-focus camera lenses .
Saturn’s autumnal equinox is expected to occur on May 6, 2025. Spying Saturn’s spokes The NASA Voyager 2 spacecraft captured the first evidence of the spokes in the 1980s.
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Before the advent of telescopic photography, eight moons of Saturn were discovered by direct observation using optical telescopes.Saturn's largest moon, Titan, was discovered in 1655 by Christiaan Huygens using a 57-millimeter (2.2 in) objective lens [14] on a refracting telescope of his own design. [15]
Saturn has a fresh new look thanks to NASA’s Webb Space Telescope. Three of Saturn’s many moons also got caught on camera. Scientists are thrilled with this latest shot, which captures Saturn ...
The atmosphere of Saturn's moon Titan was discovered by Kuiper while working at the Yerkes Observatory—a moon that would later be visited by Voyager 1 and also the Cassini-Huygens spacecraft. By 1905, the largest telescope in the World was the Harvard 60-inch Reflector ( 1.524 m 60″) at Harvard College Observatory, USA. [72]