Space Words That Start with C

There are so many astronomical objects out there behaving in mysterious ways that astronomers are still trying to figure out. A brand new set of words and language has to be invented every time something is discovered and that is part of what makes the study of space so interesting. There’s so much out there that is waiting to be found.

The use of mythological and ancient names to name all the objects that are in space has also always given astronomy an air of mystery and wonder that attracts all kinds of people and incentivizes them to look at the sky every night.

There are so many space-related words and terms that it is hard to keep up.

This is why below, we have compiled a list of space words that start with C so you can learn more about the study of the universe. These are words that are related to astronomy and space, if what you are looking for is specifically for name ideas or the names of objects, check out our lists of star names, planets, or constellations. You will also find those sorted by letter.

CMB (Cosmic Microwave Background)The faint radiation left over from the Big Bang
Cassini-HuygensA mission to study Saturn and its moon Titan
CelestialRelating to the sky or the universe
Celestial EquatorThe projection of the Earth’s equator onto the celestial sphere
Celestial MechanicsThe study of the motion and behavior of celestial bodies
Celestial NavigationDetermining one’s position using celestial objects like stars
Celestial ObjectAny object found in space, such as a planet, star, or galaxy
Celestial SphereImaginary sphere with Earth at its center, used to map celestial objects
CentaurA type of minor planet or asteroid that orbits between Jupiter and Neptune
Cepheid VariableA type of star that pulsates in brightness with a well-defined period
CeresThe largest object in the asteroid belt, classified as a dwarf planet
Chromatic AberrationThe distortion of light by a lens, causing colors to separate
ChromosphereThe layer of the Sun’s atmosphere above the photosphere
CirculationThe movement of matter within stars or planetary atmospheres
CircumpolarStars that appear to move in circles around the celestial poles
Circumstellar DiskA rotating disk of gas and dust around a young star
ClusterA group of stars, galaxies, or other celestial objects
CometA small icy body that orbits the Sun
Comet NucleusThe solid core of a comet
Comet TailThe glowing stream of gas and dust trailing a comet
ConjunctionThe alignment of two or more celestial bodies in the sky
ConstellationA group of stars forming a recognizable pattern
Constellation MythologyCultural stories and legends associated with constellations
Convection ZoneA layer in a star’s interior where energy is transported by convection
CoreThe central region of a planet or star
CoronaThe outermost layer of the Sun’s atmosphere
Coronal HeatingThe process responsible for the high temperature of the Sun’s corona
Coronal LoopA stream of hot plasma following magnetic field lines on the Sun
Coronal Mass EjectionA massive burst of solar wind and magnetic fields from the Sun
CosmicPertaining to the entire universe
Cosmic DustTiny solid particles found throughout space
Cosmic InflationThe rapid expansion of the universe in its early moments
Cosmic RayHigh-energy particles originating from space
CosmologyThe study of the origins and structure of the universe
CosmonautA Russian or Soviet astronaut
CraterA bowl-shaped depression on a celestial body, usually a planet or moon
CrustThe outermost layer of a planet or moon
CydoniaA region on Mars known for its distinctive surface features
CygnusA constellation in the northern hemisphere
Space words that start with C

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