Astronomical Instrument

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General

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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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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.

  • Get Ready for International Observe the Moon Night
    by Diana Hannikainen on October 18, 2018 at 3:20 pm

    Fasscinated by our Moon? Want to know more about it? Join fellow lunar enthusiasts on Saturday, October 20th, for International Observe the Moon Night! The post Get Ready for International Observe the Moon Night appeared first on Sky & Telescope. […]

  • R Coronae Borealis Awakes and Pluto Blocks a Star
    by Bob King on August 8, 2018 at 2:49 pm

    Sometimes, it's just as exciting to watch a celestial object fade or disappear as it is to see it explode. We celebrate the "return" of a mysterious variable star and prepare for Pluto to occult a star. The post R Coronae Borealis Awakes and Pluto Blocks a Star appeared first on Sky & Telescope. […]

  • Catch the Perseid Meteor Shower at Its Peak
    by JR on August 7, 2018 at 2:34 pm

    Plan for optimal conditions for the year’s Perseid meteor shower, early in the mornings of August 12th and 13th. The post Catch the Perseid Meteor Shower at Its Peak appeared first on Sky & Telescope. […]

  • Tour August’s Sky: Perseid Time!
    by Kelly Beatty on August 2, 2018 at 6:12 pm

    As told in this month's astronomy podcast, August offers excellent viewing conditions for the always-flashy Perseid meteor shower — and a chance to see four bright planets at once. The post Tour August’s Sky: Perseid Time! appeared first on Sky & Telescope. […]

  • Red Moon Meets Red Planet in Longest Total Lunar...
    by Bob King on July 25, 2018 at 2:49 pm

    Not only will the Moon will be totally eclipsed this Friday, but Mars will be at opposition and shine in tandem with the red Moon all night! The post Red Moon Meets Red Planet in Longest Total Lunar Eclipse of the Century 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.

  • Superflares from young red dwarf stars imperil...
    on October 18, 2018 at 6:12 pm

    Flares from the youngest red dwarfs surveyed are 100 to 1,000 times more energetic than when the stars are older. This younger age is when terrestrial planets are forming around their stars. […]

  • Astronomers find a cosmic Titan in the early...
    on October 17, 2018 at 3:10 pm

    Astronomers have discovered a titanic structure in the early universe, just two billion years after the Big Bang. This galaxy proto-supercluster, nicknamed Hyperion, is the largest and most massive structure yet found at such a remote time and distance. […]

  • All in the family: Kin of gravitational wave...
    on October 16, 2018 at 5:20 pm

    According to new research, an object named GRB150101B -- first reported as a gamma-ray burst in 2015 -- shares remarkable similarities with GW170817, the neutron star merger discovered by LIGO and observed by multiple light-gathering telescopes in 2017. The new analysis suggests that these two separate objects may in fact be directly related. […]

  • Death of a massive star and birth of compact...
    on October 11, 2018 at 6:31 pm

    The unexpectedly gentle death of a massive star suggests that it was being robbed by a dense companion lurking out of sight. […]

  • New telescope almost doubles known number of...
    on October 10, 2018 at 5:23 pm

    Astronomers have nearly doubled the known number of 'fast radio bursts'-- powerful flashes of radio waves from deep space. The team's discoveries include the closest and brightest fast radio bursts ever detected and they have proved that fast radio bursts are coming from the other side of the Universe rather than from our own galactic neighborhood. […]


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.

  • Gravitational waves could soon provide measure of...
    on October 22, 2018 at 9:16 pm

    Twenty years ago, scientists were shocked to realize that our universe is not only expanding, but that it's expanding fasterover time. […]

  • HD 87240 is a chemically peculiar star with an...
    on October 22, 2018 at 1:00 pm

    European astronomers have conducted a chemical study of the star HD 87240, a member of the open cluster NGC 3114. The new research, which determined the abundances of several elements in HD 87240's atmosphere, suggests that the object is a chemically peculiar star showcasing an overabundance of heavy elements. The finding is reported in a paper published October 10 on arXiv.org. […]

  • How mission delays hurt young astronomers
    on October 22, 2018 at 12:45 pm

    Back in Ye Olden Times, the job of astronomer was a pretty exclusive club. Either you needed to be so rich and so bored that you could design, build, and operate your own private observatory, or you needed to have a rich and bored friend who could finance your cosmic curiosity for you. By contrast, today's modern observatories are much more democratic, offering of a wealth of juicy scientific info for researchers across the globe. But that ease of access comes with its own price: you don't get […]

  • Astronomers propose a new method for detecting...
    on October 22, 2018 at 12:31 pm

    A stellar mass black hole is a compact object with a mass greater than three solar masses. It is so dense and has such a powerful force of attraction that not even light can escape from it. They cannot be observed directly, but only via secondary effects—for instance, in the case of a black hole feeding on a companion star. In general, when matter falls onto a black hole it does so "quietly" by way of an accretion disc. However, there are periods when this infall is violent and bursts, […]

  • Kes 75—Milky Way's youngest pulsar exposes...
    on October 22, 2018 at 12:22 pm

    Scientists have confirmed the identity of the youngest known pulsar in the Milky Way galaxy using data from NASA's Chandra X-ray Observatory. This result could provide astronomers new information about how some stars end their lives. […]