Astronomical Instrument

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Universe Astronomical Instrument
Galaxy Milky Way, Andromeda
Planetary System Star, Brown Dwarf, Planet, Moon

Solar System Sun
Terrestrial Planet Mercury, Venus, Earth (Moon), Mars
Asteroid Belt Ceres, Vesta
Jovian Planet Jupiter, Saturn, Uranus, Neptune
Trans-Neptunian Object
Kuiper Belt Pluto, Haumea, Makemake
Scattered Disc Eris, Sedna, Planet X
Oort Cloud Etc. Scholz’s Star
Small Body Comet, Centaur, Asteroid

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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

History

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

Museum

Smithsonian National Air and Space Museum

Library

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

Participation

Education

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

Course

Crash Course Astronomy (YouTube)

OER Commons: Open Educational Resources

Community

Occupation

Careers in Astronomy (Ask an Astronomer, Cornell University)

News

Sky & Telescope, ScienceDaily, Phys.org, NPR Archives

Book

ISBNdb

Government

Document

USA.gov

Expression

Acapella Science (YouTube Channel)

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Celestial News & Events – Sky & Telescope The essential guide to astronomy

  • This Week's Sky At a Glance, March 5 – 13
    by Alan MacRobert on March 5, 2021 at 10:12 am

    Sirius shines high on the meridian right after dark, as Orion starts tilting westward. Mars keeps company with the Pleiades. And three planets help you greet the dawn. The post This Week's Sky At a Glance, March 5 – 13 appeared first on Sky & Telescope.

  • March — A Good Time to Visit Vesta
    by Bob King on March 3, 2021 at 5:42 pm

    Dip into this easy guide to seeing the brightest asteroid, Vesta, and understanding what makes it unique. The post March — A Good Time to Visit Vesta appeared first on Sky & Telescope.

  • This Week's Sky at a Glance, February 26 –...
    by Alan MacRobert on February 26, 2021 at 4:30 pm

    Mars is passing the Pleiades. Sirius and Canis Major take over the early-evening meridian from Orion. And low in the dawn, Jupiter closes in on Mercury. The post This Week's Sky at a Glance, February 26 – March 6 appeared first on Sky & Telescope.

  • This Week's Sky at a Glance, February 19 – 27
    by Alan MacRobert on February 19, 2021 at 3:00 pm

    Sirius the Dog Star blazes high in the southeast after dinnertime, the brightest star of Canis Major. Spot it lower left of Orion. The stars of Canis Major can be connected to form a convincing dog profile. The post This Week's Sky at a Glance, February 19 – 27 appeared first on Sky & Telescope.

  • A Deep-sky Hippity-hop through Lepus, the Hare
    by Bob King on February 17, 2021 at 5:34 pm

    Snare a dozen bright double stars and deep-sky objects in the celestial Hare the next clear night. We also provide details on how to watch the potentially hazardous asteroid Apophis occult a star the night of February 21st. The post A Deep-sky Hippity-hop through Lepus, the Hare 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.

  • Comet Catalina suggests comets delivered carbon...
    on March 5, 2021 at 6:37 pm

    Comet Catalina is helping explain more about our own origins as it becomes apparent that comets like Catalina could have been an essential source of carbon on planets like Earth and Mars during the early formation of the solar system.

  • 'Space hurricane' in Earth's upper atmosphere...
    on March 2, 2021 at 6:07 pm

    Analysis of observations made by satellites in 2014 has revealed a long-lasting 'space hurricane' -- a swirling mass of plasma several hundred kilometers above the North Pole, raining electrons instead of water.

  • Largest cluster of galaxies known in the early...
    on February 26, 2021 at 3:38 pm

    A study has found the most densely populated galaxy cluster in formation in the primitive universe. The researchers predict that this structure, which is at a distance of 12.5 billion light years from us, will have evolved into a cluster similar to that of Virgo, a neighbor of the Local Group of galaxies to which the Milky Way belongs.

  • Comet makes a pit stop near Jupiter's asteroids
    on February 25, 2021 at 7:37 pm

    After traveling several billion miles toward the Sun, a wayward young comet-like object orbiting among the giant planets has found a temporary parking place along the way. The object has settled near a family of captured ancient asteroids, called Trojans, that are orbiting the Sun alongside Jupiter. This is the first time a comet-like object has been spotted near the Trojan population.

  • Delayed radio flares after star is destroyed by...
    on February 23, 2021 at 4:07 pm

    A team of researchers has discovered evidence of radio flares emitted only long after a star is destroyed by a black hole.


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.

  • The GRANTECAN discovers the largest cluster of...
    on February 26, 2021 at 4:01 pm

    A study, led by researchers at the Instituto de Astrofísica de Canarias (IAC) and carried out with OSIRIS, an instrument on the Gran Telescopio Canarias (GTC), has found the most densely populated galaxy cluster in formation in the primitive universe. The researchers predict that this structure, which is at a distance of 12.5 billion light years from us, will have evolved becoming a cluster similar to that of Virgo, a neighbor of the Local Group of galaxies to which the Milky Way belongs. The […]

  • Comet makes a pit stop near Jupiter's asteroids
    on February 25, 2021 at 7:56 pm

    After traveling several billion miles toward the Sun, a wayward young comet-like object orbiting among the giant planets has found a temporary parking place along the way. The object has settled near a family of captured ancient asteroids, called Trojans, that are orbiting the Sun alongside Jupiter. This is the first time a comet-like object has been spotted near the Trojan population.

  • NASA's Webb telescope will capture more stars at...
    on February 24, 2021 at 1:02 pm

    The combination of high resolution and infrared-detecting instruments on NASA's upcoming James Webb Space Telescope will reveal stars that are currently hidden even from the powerful Hubble Space Telescope. The wealth of additional star data will allow astronomers to investigate a range of questions, from star birth to star death to the universe's elusive expansion rate. Early observations with Webb will demonstrate its ability to distinguish the individual light of stars in the local universe […]

  • Reclusive neutron star may have been found in...
    on February 23, 2021 at 6:49 pm

    What remains of the star that exploded just outside our galaxy in 1987? Debris has obscured scientists' view, but two of NASA's X-ray telescopes have revealed new clues.

  • NASA's Swift helps tie neutrino to star-shredding...
    on February 22, 2021 at 6:04 pm

    For only the second time, astronomers have linked an elusive particle called a high-energy neutrino to an object outside our galaxy. Using ground- and space-based facilities, including NASA's Neil Gehrels Swift Observatory, they traced the neutrino to a black hole tearing apart a star, a rare cataclysmic occurrence called a tidal disruption event.