Planetary System

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Spotlight




Exoplanet Travel Bureau (NASA)


This 360° panorama depicts the surface of a newly detected planet, TRAPPIST-1d, part of a seven planet system some 40 light years away. You can explore this artist’s rendering of an alien world by moving the view using your mouse or your mobile device. The depiction is based on the latest scientific data about this planetary system, and this world’s sister planets can be seen as bright points of light in a dark sky. Each world is roughly in Earth’s size range, in terms of both mass and diameter. Further observations will be needed to determine whether any or all of these worlds might be habitable. — YouTube 360 Video Information, NASA Jet Propulsion Laboratory

Related

Pages

Physical Realm
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

Resources

These are organized by a classification scheme developed exclusively for Cosma. More…

General

Portal

Beyond Our Solar System (NASA)
Planets & Planetary Systems Internet Resources (Library of Congress)
Extrasolar Systems Internet Resources (Library of Congress)

Encyclopedia

Planetary system is a set of gravitationally bound non-stellar objects in or out of orbit around a star or star system. Generally speaking, systems with one or more planets constitute a planetary system, although such systems may also consist of bodies such as dwarf planets, asteroids, natural satellites, meteoroids, comets, planetesimals and circumstellar disks. The Sun together with its planetary system, which includes Earth, is known as the Solar System. The term exoplanetary system is sometimes used in reference to other planetary systems.

As of 1 August 2018, there are 3,815 confirmed planets in 2,853 systems, with 633 systems having more than one planet. Debris disks are also known to be common, though other objects are more difficult to observe.

Of particular interest to astrobiology is the habitable zone of planetary systems where planets could have surface liquid water, and thus the capacity to harbor Earth-like life. — Wikipedia

Introduction


Library

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

Participation

Education

Planetary Systems (Cosmos4Kids)

Community

Organization

The Planetary Society

News

Exoplanet News (NASA), Science News, Phys.org, NPR Archives

Book

ISBNdb

Government

Document

USA.gov

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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.

  • First global geologic map of Saturn's largest...
    on November 18, 2019 at 6:09 pm

    The first map showing the global geology of Saturn's largest moon, Titan, has been completed and fully reveals a dynamic world of dunes, lakes, plains, craters and other terrains.

  • Zeroing in on baby exoplanets could reveal how...
    on November 18, 2019 at 2:17 pm

    Twenty-four years ago, Swiss astronomers Michel Mayor and Didier Queloz discovered the first planet orbiting a sun-like star outside our solar system—a milestone recognised by this year's Nobel prize in physics. Today we know of thousands more 'exoplanets," and researchers are now trying to understand when and how they form.

  • NASA finds Neptune moons locked in 'dance of...
    on November 15, 2019 at 1:46 pm

    Even by the wild standards of the outer solar system, the strange orbits that carry Neptune's two innermost moons are unprecedented, according to newly published research.

  • Astrophysicist discovers numerous multiple star...
    on November 13, 2019 at 3:28 pm

    Is Earth the only habitable planet in the universe or are there more worlds somewhere out there that are capable of supporting life? And if there are, what might they look like? In a bid to answer these fundamental questions, scientists are searching space for exoplanets: distant worlds that orbit other stars outside our solar system.

  • Astronauts to test drive a lunar robot from the...
    on November 13, 2019 at 8:59 am

    Astronauts could one day remotely control Moon and Mars rovers from orbit. An upcoming test aboard the International Space Station could help make this a possibility. In November, the ESA (European Space Agency) will conduct an experiment in orbit known as ANALOG-1 to see if station crews, scientists on the ground and new technology can work together to guide a rover on a simulated lunar mission.