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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.
Venus is in Earth's sky bright enough to be visible without aid, making it one of the classical planets that human cultures have known and identified throughout history, particularly for being the third brightest object in Earth's sky after the Sun and the Moon. Because the movements of Venus appear to be discontinuous (it disappears due to its ...
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 ...
a decrescent (waning) moon (as viewed from the northern hemisphere) new moon [22] [23] U+1F311 (dec 127761) 🌑︎: fully dark [17] [24] [25] U+1F31A (dec 127770) 🌚︎: waxing crescent U+1F312 (dec 127762) 🌒︎: encrescent moon (northern hemisphere) first-quarter (waxing) moon U+1F313 (dec 127763) 🌓︎: one week into the month, half ...
Dark spot, may be irregular MA Mare, maria / ˈ m ɑːr iː,-eɪ /, / ˈ m ɑːr i ə / A "sea": on the Moon, a low albedo, relatively smooth plain, generally of large extent; on Mars, dark albedo area, e.g. Mare Erythraeum; on Titan, large expanses of dark materials thought to be liquid hydrocarbons, e.g. Ligeia Mare. ME Mensa, mensae / ˈ m ...
In the early days, only a very limited number of features could be seen on other Solar System bodies other than the Moon. Craters on the Moon could be observed with even some of the earliest telescopes, and 19th-century telescopes could make out some features on Mars. Jupiter had its famous Great Red Spot, also visible through early telescopes.
The first full moon of 2025 is called the Wolf Moon. It's also a supermoon, set to appear in night skies Jan. 13, and will pass in front of Mars during a phenomenon known as occultation.
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.