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Denotes any mass of natural matter of a certain size, located in space.
planets and satellites
Planets, dwarf planets and plutoids orbit the Sun, satellites orbit the planets. They are represented from left to right from the Sun, based on their relative sizes.
Fragment of rock, iron or another mineral that crashes into Earth instead of completely burning up as it crosses the atmosphere.
Small icy body that partially evaporates as it approaches the Sun; made up of a head with a solid core and tails composed of gas and dust.
A sphere of gas massive enough to generate light and heat through nuclear reactions that transform hydrogen into helium in its core.
Region of our galaxy under the influence of the Sun; includes eight planets and their natural satellites as well as one dwarf planet, two plutoids, asteroids and comets.
Star composed of 92.1% hydrogen atoms and 7.8% helium atoms, around which the planets gravitate; represents more than 99.8% of the solar system’s total mass.
Earth’s only natural satellite; devoid of water and atmosphere, it displays a highly uneven surface.
Grouping of stars and interstellar matter linked together by gravitation; each galaxy comprises an average of 100 billion stars.