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TRAPPIST-1h, the Glossary

TRAPPIST-1h, also designated as 2MASS J23062928-0502285 h, is an exoplanet orbiting around the ultra-cool dwarf star TRAPPIST-1, located away from Earth in the constellation Aquarius.^[1]

20 relations: Apparent magnitude, Aquarius (constellation), Astronomical unit, Cryovolcano, Earth, Exoplanet, Frost line (astrophysics), G-force, Geyser, Hydrogen, Internal heating, List of transiting exoplanets, Mercury (planet), Outgassing, Planetary equilibrium temperature, Spitzer Space Telescope, The Indian Express, Tidal heating, TRAPPIST-1, Ultra-cool dwarf.
Exoplanets discovered in 2017
Near-Earth-sized exoplanets
Sub-Earth exoplanets
TRAPPIST-1

Apparent magnitude

Apparent magnitude is a measure of the brightness of a star or other astronomical object.

See TRAPPIST-1h and Apparent magnitude

Aquarius (constellation)

Aquarius is an equatorial constellation of the zodiac, between Capricornus and Pisces.

See TRAPPIST-1h and Aquarius (constellation)

Astronomical unit

The astronomical unit (symbol: au, or AU) is a unit of length defined to be exactly equal to.

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Cryovolcano

A cryovolcano (sometimes informally referred to as an ice volcano) is a type of volcano that erupts gases and volatile material such as liquid water, ammonia, and hydrocarbons.

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Earth

Earth is the third planet from the Sun and the only astronomical object known to harbor life.

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Exoplanet

An exoplanet or extrasolar planet is a planet outside the Solar System.

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In astronomy or planetary science, the frost line, also known as the snow line or ice line, is the minimum distance from the central protostar of a solar nebula where the temperature is low enough for volatile compounds such as water, ammonia, methane, carbon dioxide and carbon monoxide to condense into solid grains, which will allow their accretion into planetesimals.

See TRAPPIST-1h and Frost line (astrophysics)

G-force

The g-force or gravitational force equivalent is mass-specific force (force per unit mass), expressed in units of standard gravity (symbol g or g0, not to be confused with "g", the symbol for grams).

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Geyser

A geyser is a spring with an intermittent discharge of water ejected turbulently and accompanied by steam.

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Hydrogen

Hydrogen is a chemical element; it has symbol H and atomic number 1.

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Internal heating

Internal heat is the heat source from the interior of celestial objects, such as stars, brown dwarfs, planets, moons, dwarf planets, and (in the early history of the Solar System) even asteroids such as Vesta, resulting from contraction caused by gravity (the Kelvin–Helmholtz mechanism), nuclear fusion, tidal heating, core solidification (heat of fusion released as molten core material solidifies), and radioactive decay.

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List of transiting exoplanets

This is a list of transiting extrasolar planets sorted by orbital periods. TRAPPIST-1h and list of transiting exoplanets are transiting exoplanets.

See TRAPPIST-1h and List of transiting exoplanets

Mercury (planet)

Mercury is the first planet from the Sun and the smallest in the Solar System.

See TRAPPIST-1h and Mercury (planet)

Outgassing

Outgassing (sometimes called offgassing, particularly when in reference to indoor air quality) is the release of a gas that was dissolved, trapped, frozen, or absorbed in some material.

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Planetary equilibrium temperature

The planetary equilibrium temperature is a theoretical temperature that a planet would be if it were in radiative equilibrium, typically under the assumption that it radiates as a black body being heated only by its parent star.

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Spitzer Space Telescope

The Spitzer Space Telescope, formerly the Space Infrared Telescope Facility (SIRTF), is an infrared space telescope launched in 2003, that was deactivated when operations ended on 30 January 2020.

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The Indian Express

The Indian Express is an English-language Indian daily newspaper founded in 1932 by Ramnath Goenka with an investment by capitalist partner Raja Mohan Prasad.

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Tidal heating

Tidal heating (also known as tidal working or tidal flexing) occurs through the tidal friction processes: orbital and rotational energy is dissipated as heat in either (or both) the surface ocean or interior of a planet or satellite.

See TRAPPIST-1h and Tidal heating