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You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.
You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.
28978 Ixion (/ ɪ k ˈ s aɪ. ə n /, provisional designation 2001 KX 76) is a large trans-Neptunian object and a possible dwarf planet.It is located in the Kuiper belt, a region of icy objects orbiting beyond Neptune in the outer Solar System.
Meridian telescopes rely on the rotation of the sky to bring objects into their field of view and are mounted on a fixed, horizontal, east–west axis. The similar transit instrument , transit circle , or transit telescope is likewise mounted on a horizontal axis, but the axis need not be fixed in the east–west direction.
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The observatory is named for Vera Rubin, an American astronomer who pioneered discoveries about galactic rotation rates. The Rubin Observatory will house the Simonyi Survey Telescope, [14] a wide-field reflecting telescope with an 8.4-meter primary mirror [9] [10] that will photograph the entire available sky every few nights. [15]
Imaging X-ray Polarimetry Explorer, commonly known as IXPE or SMEX-14, is a space observatory with three identical telescopes designed to measure the polarization of cosmic X-rays of black holes, neutron stars, and pulsars. [6]
He left there in 1977 to become a freelance illustrator and author; to date he has nearly sixty book titles to his credit, and his illustrations have appeared on hundreds of book jackets, book interiors and in magazines such as National Geographic, Reader's Digest, Scientific American, [3] Smithsonian, Analog, Starlog, Air & Space, Astronomy ...