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Solar System Sun
Terrestrial Planet Mercury, Venus, Earth (Moon), Mars
Asteroid Belt Ceres, Vesta
Jovian Planet Jupiter, Saturn, Uranus, Neptune
Kuiper Belt Pluto, Haumea, Makemake
Scattered Disc Eris, Sedna, Planet X
Oort Cloud Etc. Scholz’s Star
Small Body Comet, Centaur, Asteroid
These are organized by a classification scheme developed exclusively for Cosma. More…
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
Celestial News & Events – Sky & Telescope The essential guide to astronomy
Stormy Times on Jupiter, Comet Howell Steps Up,...
by Bob King on September 9, 2020 at 3:25 pm
Colder weather might be coming, but don't pack away that telescope! You'll miss a powerful storm that's remaking Jupiter's North Temperate Belt, a returning comet, Mira on the rise, and a bright supernova in the Great Bear. The post Stormy Times on Jupiter, Comet Howell Steps Up, and More appeared first on Sky & Telescope.
Take a Roller Coaster Ride on a Fast Eclipsing...
by Bob King on August 26, 2020 at 3:59 pm
How would you like to see a star drop two magnitudes in the time it takes to eat dinner? Easy to do. Just check out one of these fast eclipsing binaries — they'll make your head spin. The post Take a Roller Coaster Ride on a Fast Eclipsing Binary appeared first on Sky & Telescope.
Perseids Peak August 11–12 — Get Ready for...
by Bob King on August 10, 2020 at 5:48 pm
The Perseid meteor shower is like no other. Every August it delivers up to 100 meteors an hour in pleasant weather conducive to getting outside and staying up late. What's more, most kids still aren't in school, making it possible for the entire family to enjoy the event. The post Perseids Peak August 11–12 — Get Ready for the Show appeared first on Sky & Telescope.
Cool Off with Pluto This Summer
by Bob King on July 29, 2020 at 6:07 pm
Pluto might be a challenging target but it's well worth the effort. Grab your telescope and see if you can spot this distant, chilly world. The post Cool Off with Pluto This Summer appeared first on Sky & Telescope.
500 Days Until the Total Solar Eclipse Over...
by Jamie Carter on July 22, 2020 at 3:00 pm
Travel to the ends of the Earth to experience a special — but risky — total solar eclipse in Antarctica. The post 500 Days Until the Total Solar Eclipse Over Antarctica 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.
Faint orbital debris that threatens satellites...
on September 24, 2020 at 5:53 pm
Astronomers are warning that orbital debris posing a threat to operational satellites is not being monitored closely enough, as they publish a new survey finding that over 75% of the orbital debris they detected could not be matched to known objects in public satellite catalogues.
Shadow of black hole in M87 galaxy is wobbling...
on September 23, 2020 at 4:46 pm
A new analysis reveals the behavior of the supermassive black hole in the center of the M87 galaxy across multiple years, indicating the crescent-like shadow feature appears to be wobbling.
Water on exoplanet cloud tops could be found with...
on September 22, 2020 at 2:24 pm
Astronomers have shown that water vapor can potentially be detected in the atmospheres of exoplanets by peering literally over the tops of their impenetrable clouds.
Astronomers discover an Earth-sized 'pi planet'...
on September 21, 2020 at 3:17 pm
Scientists have discovered a 'pi Earth' -- an Earth-sized planet that zips around its star every 3.14 days, in an orbit reminiscent of the universal mathematics constant.
Hubble captures crisp new portrait of Jupiter's...
on September 17, 2020 at 10:04 pm
Hubble's sharp view is giving researchers an updated weather report on the monster planet's turbulent atmosphere, including a remarkable new storm brewing, and a cousin of the famous Great Red Spot region gearing up to change color -- again.
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.
Researchers depict the formation of galaxies
on September 24, 2020 at 1:12 pm
An international team of astronomers, with researchers at Leiden Observatory playing a leading role, has mapped the fuel for galaxy formation in the iconic Hubble Ultra Deep Field. The results of the research have been accepted for publication in The Astrophysical Journal.
Data sonification: Sounds from around the Milky...
on September 22, 2020 at 7:18 pm
The center of our Milky Way galaxy is too distant for us to visit in person, but we can still explore it. Telescopes give us a chance to see what the Galactic Center looks like in different types of light. By translating the inherently digital data (in the form of ones and zeroes) captured by telescopes in space into images, astronomers create visual representations that would otherwise be invisible to us.
Can ripples on the sun help predict solar flares?
on September 22, 2020 at 7:10 pm
Solar flares are violent explosions on the sun that fling out high-energy charged particles, sometimes toward Earth, where they disrupt communications and endanger satellites and astronauts.
Spacecraft DAPPER will study 'Dark Ages' of the...
on September 22, 2020 at 4:34 pm
The National Radio Astronomy Observatory (NRAO) has joined a new NASA space mission to the far side of the Moon to investigate when the first stars began to form in the early universe.
Water on exoplanet cloud tops could be found with...
on September 22, 2020 at 1:40 pm
University of Warwick astronomers have shown that water vapor can potentially be detected in the atmospheres of exoplanets by peering literally over the tops of their impenetrable clouds.