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The adjectival forms of the names of astronomical bodies are not always easily predictable. Attested adjectival forms of the larger bodies are listed below, along with the two small Martian moons; in some cases they are accompanied by their demonymic equivalents, which denote hypothetical inhabitants of these bodies.
An oval feature. Used only on Venus and Miranda. CR Crater, craters / ˈ k r eɪ t ər / A circular depression (in most cases created by impact event). This term is implicit. AA Dorsum, dorsa / ˈ d ɔːr s əm /, / ˈ d ɔːr s ə / Ridge, sometimes called a wrinkle ridge e.g. Dorsum Buckland. DO Eruptive center An active volcano on Io. This ...
Ben Bussey and Paul Spudis, The Clementine Atlas of the Moon, Cambridge University Press, 2004, ISBN 0-521-81528-2. Antonín Rükl, Atlas of the Moon, Kalmbach Books, 1990, ISBN 0-913135-17-8. Ewen A. Whitaker, Mapping and Naming the Moon, Cambridge University Press, 1999, ISBN 0-521-62248-4.
Before 2006, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto were considered as planets. Below are partial list of these mnemonics: "Men Very Easily Make Jugs Serve Useful Needs, Perhaps" – The structure of this sentence, which is current in the 1950s, suggests that it may have originated before Pluto's discovery.
Because of the retrograde rotation, the length of a solar day on Venus is significantly shorter than the sidereal day, at 116.75 Earth days (making the Venusian solar day shorter than Mercury's 176 Earth days — the 116-day figure is close to the average number of days it takes Mercury to slip underneath the Earth in its orbit [the number of ...
However, the increasing number of moons that were being discovered in the 21st century caused the IAU to draw up a new scheme for the outer moons. At the IAU General Assembly in July 2004, [ 2 ] the WGPSN allowed satellites of Saturn to have names of giants and monsters in mythologies other than the Greco-Roman.
Lunar: 1,624 craters (31.2%) Venusian: 900 craters (17.3%) Mercurian: 397 craters (7.6%) Martian: 1,092 craters (21.0%) Others: 1,198 craters (23.0%) Distribution of named craters in the Solar System as of 2017. [a] This is a list of craters on Venus, named by the International Astronomical Union's (IAU) Working Group for Planetary System Nomenclature. All craters on Venus are named after ...
The origins of the planetary symbols can be found in the attributes given to classical deities. The Roman planisphere of Bianchini (2nd century, currently in the Louvre, inv. Ma 540) [2] shows the seven planets represented by portraits of the seven corresponding gods, each a bust with a halo and an iconic object or dress, as follows: Mercury has a caduceus and a winged cap; Venus has a ...