n
Alternative form of Pluto (Minor-planet designation for the dwarf planet) [(Greek mythology, Roman mythology) Greco-Roman god of the underworld.]
n
(astronomy, specifically) The brightest star of the aforementioned star system.
n
(astronomy) a binary star in the constellation Corona Borealis, about 75 light years away
n
(astronomy) apoapsis around Jupiter
n
(astronomy) The main asteroid belt, the region of the orbital plane of the Solar System located between the orbits of Mars and Jupiter which is occupied by numerous minor planets (asteroids) and the dwarf planet Ceres.
n
(astronomy) A 4,800 km (3,000 mi) wide region between the A Ring and B Ring in Saturn.
n
(astronomy) A former constellation of the northern sky, near Hercules.
adj
(astronomy, obsolete) In orbit around the planet Jupiter.
n
(astronomy) A dim spring constellation of the northern sky, said to resemble a cup. It lies between the constellations Virgo and Hydra.
n
Beta Leonis, the second-brightest star in the constellation of Leo.
n
(astronomy) Theta Capricorni, a star on the back of the Goat.
n
(astronomy) Synonym of Kuiper belt
n
A comet in Solar System, the second periodic comet discovered, prototype of the Encke-type comet, discovered by Johann Franz Encke
n
(astronomy) A meteor in a meteor shower appearing to originate from Eridanus.
n
(astronomy) The celestial body 136199 Eris, the most-massive known dwarf planet in the Solar System and the largest known object in the scattered disk; formerly nicknamed Xena.
n
(astronomy) A Chinese constellation located near Aquarius, one of the 28 lunar mansions and part of the Black Turtle.
n
(Astronomy) A dwarf planet orbiting in the scattered disk. Its moon is Xiangliu.
n
A giant anticyclonic storm on the planet Jupiter, first observed about 1665.
n
A planetoid orbiting in the scattered disc. Its moon is Gǃòʼé ǃHú.
n
Alternative form of Halley's Comet [A great comet which can be seen from Earth every 75–76 years.]
n
Each of a shower of meteorites which fall from the area of sky around the constellation Hercules.
n
(astronomy) The planet Mercury when observed as an evening star.
n
(astronomy, obsolete) The planet Uranus. In use until the mid-19th century as an alternative to Georgium Sidus after King George III.
n
(astronomy) Any of the meteors in a meteor shower that appears to come from the constellation Hydra.
n
(astronomy) The fifth and by far the largest planet in the Solar System, a gas giant, represented by the symbol ♃ in astronomy. Jupiter is known for its Great Red Spot and many moons including the Galilean moons.
n
(astronomy) Initialism of Kuiper belt object. [(astronomy) A type of trans-Neptunian object (TNO) (a certain type of minor planet) that has an orbit in the Kuiper belt (between 30-50 AU) with inclinations consistent with the ecliptic.]
n
Any of the dust clouds found at the Trojan points, the L4 and L5 Lagrange points, in the Earth-Moon system, and of any other such system
n
(astronomy) A type of trans-Neptunian object (TNO) (a certain type of minor planet) that has an orbit in the Kuiper belt (between 30-50 AU) with inclinations consistent with the ecliptic.
n
(astronomy) Any meteor of a meteor shower appearing to originate in the constellation of Lynx.
n
(astronomy, historical) The constellation Mensa.
n
(astronomy) Zeta Puppis, a star in the constellation of Puppis.
n
A comet in Solar System. Visible to the naked eye in 2020. The first comet easily visible to the naked eye in the Northern Hemisphere in a quarter century.
n
(astronomy) A constellation on the celestial equator close to Gemini and Taurus, containing the stars Betelgeuse and Rigel.
n
Periapsis around the planet Saturn.
n
(New Age) A mythical dangerous belt of photons emanating from the Pleiades that will collide with the Earth in the near future according to New Age mystics.
n
(astronomy) a dwarf planet orbiting between Haumea and Makemake in the Kuiper belt. Its moon is Weywot.
n
Alpha Herculis, the brightest star in the constellation of Hercules
n
(astronomy) A blue star in the constellation Orion; Kappa (κ) Orionis.
n
(astronomy) The sixth planet of the solar system, famous for its large rings, and until recent times the furthest known; represented in astronomy and astrology by ♄.
n
(astronomy, obsolete, archaic) A moon of a planet.
n
(astronomy) 90377 Sedna, a trans-Neptunian dwarf planet whose eccentric detached orbit is wholly beyond the Kuiper belt.
n
(astronomy) The planet Mercury.
n
(astronomy) The planet Mars.
n
Alpha Delphini Aa, the first subcomponent of Alpha Delphini A, a triple star that is part of Alpha Delphini.
n
(Chinese astronomy) A Chinese constellation coinciding with the tail of Scorpius, one of the 28 lunar mansions and the tail of Azure Dragon.
n
(astronomy) Any of a group of annual meteors associated with the comet Encke, and whose radiant point is in the constellation Taurus.
n
The smaller lobe of the trans-Neptunian object Ultima Thule, a contact binary object.
adj
(astronomy) Describing a satellite (moon or minor planet) that shares an orbit with another
n
The larger lobe of the trans-Neptunian object Ultima Thule, a contact binary object.
n
(astronomy) Any meteor from a radiant in the constellation Ursa Minor.
n
(astronomy) The single known natural satellite of the plutino and likely dwarf planet Orcus.
n
A sixteen-rayed solar symbol first appearing in Ancient Greek art between the 6th and 2nd centuries BC, tentatively interpreted as a royal symbol of ancient Macedonia.
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