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  2. Terrestrial planet - Wikipedia

    en.wikipedia.org/wiki/Terrestrial_planet

    A terrestrial planet, tellurian planet, telluric planet, or rocky planet, is a planet that is composed primarily of silicate, rocks or metals.Within the Solar System, the terrestrial planets accepted by the IAU are the inner planets closest to the Sun: Mercury, Venus, Earth and Mars.

  3. List of planet types - Wikipedia

    en.wikipedia.org/wiki/List_of_planet_types

    Silicate planet: A terrestrial planet that is composed primarily of silicate rocks. All four inner planets in the Solar System are silicon-based. Terrestrial planet: Also known as a telluric planet or rocky planet. A planet that is composed primarily of carbonaceous or silicate rocks or metals.

  4. Geology of solar terrestrial planets - Wikipedia

    en.wikipedia.org/wiki/Geology_of_solar...

    The geology of solar terrestrial planets mainly deals with the geological aspects of the four terrestrial planets of the Solar System – Mercury, Venus, Earth, and Mars – and one terrestrial dwarf planet: Ceres. Earth is the only terrestrial planet known to have an active hydrosphere.

  5. Solar System - Wikipedia

    en.wikipedia.org/wiki/Solar_System

    The remaining objects of the Solar System (including the four terrestrial planets, the dwarf planets, moons, asteroids, and comets) together comprise less than 0.002% of the Solar System's total mass. [h] The Sun is composed of roughly 98% hydrogen and helium, [41] as are Jupiter and Saturn.

  6. List of Solar System objects - Wikipedia

    en.wikipedia.org/wiki/List_of_Solar_System_objects

    The inner Solar System and the terrestrial planets. Mercury. Mercury-crossing minor planets; ... a dwarf planet (307261) 2002 MS 4; 120347 Salacia; 20000 Varuna ...

  7. List of multiplanetary systems - Wikipedia

    en.wikipedia.org/wiki/List_of_multiplanetary_systems

    Planets d, e, f and g are potentially habitable. Only star known with exactly seven confirmed planets. All seven terrestrial planets lie within only 0.07 AU of the star. 55 Cancri: Cancer: 08 h 52 m 35.81 s +28° 19′ 50.9″ 5.95: 40: K0IV-V: 1.026: 5217: 7.4: 5: All five known planets orbit around star A (none are circumbinary or orbit ...

  8. Why these 4 planets are getting as much X-ray radiation as ...

    www.aol.com/why-4-planets-getting-much-085727630...

    The V 1298 Tau star system contains four young planets, orbiting close to their parent star, where they are baked in X-ray radiation. Orbiting the young star V 1298 Tau, more than 350 light-years ...

  9. Mercury (planet) - Wikipedia

    en.wikipedia.org/wiki/Mercury_(planet)

    Mercury is one of four terrestrial planets in the Solar System, which means it is a rocky body like Earth. It is the smallest planet in the Solar System, with an equatorial radius of 2,439.7 kilometres (1,516.0 mi). [4] Mercury is also smaller—albeit more massive—than the largest natural satellites in the Solar System, Ganymede and Titan.