When.com Web Search

  1. Ads

    related to: inside a telescope video for beginners youtube free

Search results

  1. Results From The WOW.Com Content Network
  2. Polar alignment - Wikipedia

    en.wikipedia.org/wiki/Polar_alignment

    Aiming at the pole stars. In the Northern Hemisphere, sighting Polaris the North Star is the usual procedure for aligning a telescope mount's polar axis parallel to the Earth's axis. [1] Polaris is approximately three-quarters of a degree from the North Celestial Pole, and is easily seen by the naked eye. σ Octantis, sometimes known as the ...

  3. Planetarium - Wikipedia

    en.wikipedia.org/wiki/Planetarium

    Inside the same hall during projection. (Belgrade Planetarium, Serbia) A planetarium (pl.: planetariums or planetaria) is a theatre built primarily for presenting educational and entertaining shows about astronomy and the night sky, or for training in celestial navigation. [1][2][3] A dominant feature of most planetariums is the large dome ...

  4. Space telescope - Wikipedia

    en.wikipedia.org/wiki/Space_telescope

    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.

  5. Telescope - Wikipedia

    en.wikipedia.org/wiki/Telescope

    A telescope is a device used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation. [1] Originally, it was an optical instrument using lenses, curved mirrors, or a combination of both to observe distant objects – an optical telescope. Nowadays, the word "telescope" is defined as a wide range of ...

  6. Astrophotography - Wikipedia

    en.wikipedia.org/wiki/Astrophotography

    An image of Orion's Belt composited from digitized black-and-white photographic plates recorded through red and blue astronomical filters, with a computer synthesized green channel. The plates were taken using the Samuel Oschin Telescope between 1987 and 1991. Astrophotography, also known as astronomical imaging, is the photography or imaging ...

  7. James Lick telescope - Wikipedia

    en.wikipedia.org/wiki/James_Lick_telescope

    The James Lick Telescope is a refracting telescope built in 1888. It has a lens, which is 91 centimetres (36 in) in diameter—a major achievement in its day. The instrument remains in operation and public viewing is allowed on a limited basis. Also called the "Great Lick Refractor" or simply "Lick Refractor", it was the largest refracting ...

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Jodrell Bank Observatory - Wikipedia

    en.wikipedia.org/wiki/Jodrell_Bank_Observatory

    Jodrell Bank Observatory. Jodrell Bank Observatory (/ ˈdʒɒdrəl / JOD-rəl) in Cheshire, England hosts a number of radio telescopes as part of the Jodrell Bank Centre for Astrophysics at the University of Manchester. The observatory was established in 1945 by Bernard Lovell, a radio astronomer at the university, to investigate cosmic rays ...