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  2. Moons of Mars - Wikipedia

    en.wikipedia.org/wiki/Moons_of_Mars

    Deimos would look more like a bright star or planet (only slightly bigger than how Venus looks from Earth) for an observer on Mars. It has an angular diameter of about 2'. The Sun's angular diameter as seen from Mars, by contrast, is about 21'. Thus there are no total solar eclipses on

  3. List of natural satellites - Wikipedia

    en.wikipedia.org/wiki/List_of_natural_satellites

    Mercury, the smallest and innermost planet, has no moons, or at least none that can be detected to a diameter of 1.6 km (1.0 mi). [2] For a very short time in 1974, Mercury was thought to have a moon. Venus also has no moons, [3] though reports of a moon around Venus have circulated since the 17th century.

  4. Venus - Wikipedia

    en.wikipedia.org/wiki/Venus

    Venus to scale among the Inner Solar System planetary-mass objects, arranged by the order of their orbits outward from the Sun (from left: Mercury, Venus, Earth, the Moon, Mars and Ceres) Venus is one of the four terrestrial planets in the Solar System, meaning that it is a rocky body like Earth.

  5. Earth isn't the only planet that has total solar eclipses

    www.aol.com/news/2017-08-11-earth-isnt-the-only...

    Mars has two moons but they are too small to block out the sun, so negative on the total solar eclipse front from Mars. But all the gas giants -- Jupiter, Saturn, Uranus and Neptune -- all have ...

  6. Portal:Solar System - Wikipedia

    en.wikipedia.org/wiki/Portal:Solar_System

    In order from the Sun, they are four terrestrial planets (Mercury, Venus, Earth and Mars); two gas giants (Jupiter and Saturn); and two ice giants (Uranus and Neptune). All terrestrial planets have solid surfaces. Inversely, all giant planets do not have a definite surface, as they are mainly composed of gases and liquids. Over 99.86% of the ...

  7. Planet - Wikipedia

    en.wikipedia.org/wiki/Planet

    The planetary-mass moons to scale, compared with Mercury, Venus, Earth, Mars, and Pluto. Sub-planetary Proteus and Nereid (about the same size as Mimas) have been included for comparison. Unimaged Dysnomia (intermediate in size between Tethys and Enceladus) is not shown; it is in any case probably not a solid body. [90]

  8. List of adjectivals and demonyms of astronomical bodies

    en.wikipedia.org/wiki/List_of_adjectivals_and...

    For instance, for a large portion of names ending in -s, the oblique stem and therefore the English adjective changes the -s to a -d, -t, or -r, as in Mars–Martian, Pallas–Palladian and Ceres–Cererian; [note 1] occasionally an -n has been lost historically from the nominative form, and reappears in the oblique and therefore in the English ...

  9. Naming of moons - Wikipedia

    en.wikipedia.org/wiki/Naming_of_moons

    The naming of moons has been the responsibility of the International Astronomical Union's committee for Planetary System Nomenclature since 1973. That committee is known today as the Working Group for Planetary System Nomenclature (WGPSN). Prior to its formation, the names of satellites have had varying histories.