Astronomical Instrument

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General

Encyclopedia

Observational astronomy is a division of astronomy that is concerned with recording data about the observable universe, in contrast with theoretical astronomy, which is mainly concerned with calculating the measurable implications of physical models. It is the practice and study of observing celestial objects with the use of telescopes and other astronomical instruments.

Galileo Galilei turned a telescope to the heavens and recorded what he saw. Since that time, observational astronomy has made steady advances with each improvement in a variety astronomical instruments and related methods. — Wikipedia

Observational Astronomy (Eric Weisstein’s World of Astronomy, Wolfram Research)
Observatories & Telescopes (Wolfram Alpha)
Encyclopædia Britannica

Astronomical Instruments, Category (Wikipedia)
Astronomical Instruments, List (Wikipedia)

Introduction



Australian Astronomical Observatory (AAO)

Preservation

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Galileo and the telescope (The Science Geek)
The History of Astronomy (Ask an Astronomer, Cornell University)

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Smithsonian National Air and Space Museum

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WorldCat, Library of Congress, UPenn Online Books, Open Library

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Telescopes (NASA.Gov)
Observational Astronomy (Ask an Astronomer, Cornell University)
Telescopes (Ask an Astronomer, Cornell University)
Telescopes (Cosmos4Kids)

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Crash Course Astronomy (YouTube)

OER Commons: Open Educational Resources

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Careers in Astronomy (Ask an Astronomer, Cornell University)

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USA.gov

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Acapella Science (YouTube Channel)

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Observing News & Current Celestial Events – Sky & Telescope The essential guide to astronomy / All Sky & Telescope (www.skyandtelescope.com) content is copyrighted. Please contact us for reuse permissions.

  • Will Sirius Disappear on February 18th?
    by Bob King on February 13, 2019 at 2:45 pm

    On Monday night, February 18th, observers in the western U.S. and Mexico may see the occultation of a lifetime when a tiny asteroid momentarily blots out the night sky's brightest star. The post Will Sirius Disappear on February 18th? appeared first on Sky & Telescope. […]

  • Comet Iwamoto Ascends and Brightens
    by Bob King on February 6, 2019 at 6:27 pm

    Comet Iwamoto is visible as a binocular target from a dark sky. Follow it this week as it passes from Virgo into Leo. The post Comet Iwamoto Ascends and Brightens appeared first on Sky & Telescope. […]

  • February Sky Tour: Dawn & Dusk Planets
    by Kelly Beatty on February 1, 2019 at 11:24 am

    February's Sky Tour podcast urges you to get outside early to gaze on three bright planets — then return in the evening to spot two more. The post February Sky Tour: Dawn & Dusk Planets appeared first on Sky & Telescope. […]

  • Astronomers Identify Weather Cycle on Jupiter
    by Sean Walker on January 24, 2019 at 1:00 pm

    Astronomers have identified a periodic clearing at the gas giant's equator; amateurs may have spotted the change at the end of 2018. The post Astronomers Identify Weather Cycle on Jupiter appeared first on Sky & Telescope. […]

  • A Space Rock Strikes Moon During the Total Lunar...
    by Bob King on January 23, 2019 at 3:38 pm

    The Moon got bonked by a space rock during Sunday's total lunar eclipse. Take a look! The post A Space Rock Strikes Moon During the Total Lunar Eclipse appeared first on Sky & Telescope. […]


Space Telescopes News -- ScienceDaily Space Telescopes. Astronomy articles and pictures from NASA's Hubble Space Telescope and Chandra X-Ray Telescope and many other leading astronomy institutes from around the world.

  • Gravitational waves will settle cosmic conundrum
    on February 14, 2019 at 4:55 pm

    Measurements of gravitational waves from approximately 50 binary neutron stars over the next decade will definitively resolve an intense debate about how quickly our universe is expanding, according to new findings. […]

  • A thousand new objects and phenomena in night sky
    on February 7, 2019 at 6:10 pm

    The Zwicky Transient Facility, based at the Palomar Observatory, has identified over a thousand new objects and phenomena in the night sky, including more than 1,100 new supernovae and 50 near-Earth asteroids. The alert system informs science teams of possible new objects or changes to known objects in the sky. […]

  • Dynamic atmospheres of Uranus, Neptune
    on February 7, 2019 at 4:49 pm

    NASA's Hubble Space Telescope has uncovered another mysterious dark storm on Neptune and provided a fresh look at a long-lived storm circling around the north polar region on Uranus. […]

  • Bubbles of brand new stars
    on February 6, 2019 at 4:56 pm

    This dazzling region of newly forming stars in the Large Magellanic Cloud (LMC) was captured by the Multi Unit Spectroscopic Explorer instrument (MUSE) on ESO's Very Large Telescope. The relatively small amount of dust in the LMC and MUSE's acute vision allowed intricate details of the region to be picked out in visible light. […]

  • Massive collision in the planetary system Kepler...
    on February 6, 2019 at 3:46 pm

    Two of the planets which are orbiting the star Kepler 107 could be the result of an impact similar to that which affected the Earth to produce the moon. […]


Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.

  • Where is the universe hiding its missing mass?
    on February 15, 2019 at 12:30 pm

    Astronomers have spent decades looking for something that sounds like it would be hard to miss: about a third of the "normal" matter in the Universe. New results from NASA's Chandra X-ray Observatory may have helped them locate this elusive expanse of missing matter. […]

  • Gravitational waves will settle cosmic conundrum
    on February 14, 2019 at 4:00 pm

    Measurements of gravitational waves from approximately 50 binary neutron stars over the next decade will definitively resolve an intense debate about how quickly our universe is expanding, according to findings from an international team that includes University College London (UCL) and Flatiron Institute cosmologists. […]

  • CTA prototype telescope, the Schwarzschild-Couder...
    on February 12, 2019 at 1:11 pm

    Less than a week after its inauguration on 17 January 2019, the prototype Schwarzschild-Couder Telescope (pSCT), a prototype telescope proposed for the Cherenkov Telescope Array (CTA), successfully detected its first Cherenkov light on January 23 at the Fred Lawrence Whipple Observatory in Arizona. A dual-mirrored Medium-Sized Telescope, the SCT is proposed to cover the middle of CTA's energy range (80 GeV – 50 TeV). […]

  • Central Africa's first ever research-class...
    on February 8, 2019 at 2:00 pm

    Kenya could soon host the only research-class observatory in equatorial Africa, thanks to a collaboration between the nation and the UK. […]

  • Asteroid from 'rare species' sighted in the...
    on February 8, 2019 at 1:50 pm

    Astronomers have discovered an asteroid looping through the inner solar system on an exotic orbit. The unusual object is among the first asteroids ever found whose orbit is confined almost entirely within the orbit of Venus. The asteroid's existence hints at potentially significant numbers of space rocks arcing unseen in uncharted regions nearer to the sun. […]