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Ceres (minor-planet designation: 1 Ceres) is a dwarf planet in the asteroid belt between the orbits of Mars and Jupiter. Originally considered a planet, it was reclassified as an asteroid in the 1850s after the discovery of dozens of other objects in similar orbits. In 2006, it was reclassified again as a dwarf planet – the only one always inside Neptune’s orbit – because, at 940 km (580 mi) in diameter, it is the only asteroid large enough for its gravity to maintain it as a spheroid in hydrostatic equilibrium. — Wikipedia

Ceres (Encyclopædia Britannica)
Ceres (COSMOS: The SAO Encyclopedia of Astronomy)

Ceres (Wolfram Alpha)
Minor Planets (Wolfram Alpha)




Solar System Exploration: Ceres (NASA Science)




Giuseppe Piazzi and the Discovery of Ceres (Foderà Serio et al.)


DDC: 523.43 Ceres (Library Thing)

Subject: Ceres (Open Library)

LCC: QB 651 Ceres (Library of Congress)
Subject: Ceres (Library of Congress)

Subject: Ceres (WorldCat)




Planets and Dwarf Planets (Ask an Astronomer, Cornell University)

MERLOT: Multimedia Educational Resource for Learning and Online Teaching
OER Commons: Open Educational Resources



Ceres (Minor Planet Center, International Astronomical Union)


Dwarf Planet Ceres (JSTOR)
TERM (EurekaAlert, AAAS)
Ceres (Astronomy Magazine)
Ceres (Phys.org)
Ceres (NPR Archives)



Ceres (USA.gov)


More News …

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.

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  • Modeling reveals how dwarf planet Ceres powers...
    on August 1, 2022 at 1:37 pm

    For a long time, our view of Ceres was fuzzy, said Scott King, a geoscientist in the Virginia Tech College of Science. A dwarf planet and the largest body found in the asteroid belt—the region between Jupiter and Mars speckled with hundreds of thousands of asteroids—Ceres had no distinguishable surface features in existing telescopic observations from Earth.

  • Ceres probably formed farther out in the solar...
    on May 19, 2022 at 2:55 pm

    When Sicilian astronomer Giuseppe Piazzi spotted Ceres in 1801, he thought it was a planet. Astronomers didn't know about asteroids at that time. Now we know there's an enormous quantity of them, primarily residing in the main asteroid belt between Mars and Jupiter.

  • Planetary Decadal Survey says it's time for a...
    on April 25, 2022 at 3:20 pm

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  • Dwarf planet Ceres: Organic chemistry and salt...
    on February 22, 2022 at 6:11 pm

    The third-largest crater on the dwarf planet Ceres was geologically active at least once many millions of years after its formation. In a recent study published today in the journal Nature Communications, researchers from the Max Planck Institute for Solar System Research (MPS) in Göttingen, the University of Münster (WWU) and the National Institute of Science Education and Research (NISER) in […]

  • First quadruple asteroid system detected
    on February 18, 2022 at 4:10 pm

    A trio of researchers from the National Astronomical Research Institute of Thailand, Université de Lyon and Sorbonne Université, respectively, has made the first sighting of a quadruple asteroid system—an asteroid with three moons orbiting around it. In their paper published in the journal Astronomy and Astrophysics, Anthony Berdeu, Maud Langlois and Frédéric Vachier, describe how they […]


Here are links to pages about closely related subjects.

Knowledge Realm


Law (Constant) Relativity
Force Gravity, Electromagnetism (Light, Color)
Matter (Microscope) Molecule, Atom (Periodic Table), Particle

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

Our Neighborhood
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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