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Visual conjunction between the Moon and the planet Venus, the two brightest objects in the night sky. In astronomy, a conjunction occurs when two astronomical objects or spacecraft appear to be close to each other in the sky. This means they have either the same right ascension or the same ecliptic longitude, usually as observed from Earth. [1] [2]
The moons Io, Ganymede, Europa, and Titan are visible. A great conjunction is a conjunction of the planets Jupiter and Saturn, when the two planets appear closest together in the sky. Great conjunctions occur approximately every 20 years when Jupiter "overtakes" Saturn in its orbit.
Venus in real colors, processed from clear and blue filtered Mariner 10 images. Observations of the planet Venus include those in antiquity, telescopic observations, and from visiting spacecraft. Spacecraft have performed various flybys, orbits, and landings on Venus, including balloon probes that floated in the atmosphere of Venus.
Venus is portrayed just to the right of the large cypress tree in Vincent van Gogh's 1889 painting The Starry Night. [259] [260] Venus is a primary feature of the night sky, and so has been of remarkable importance in mythology, astrology and fiction throughout history and in different cultures.
The classical planets are Saturn, Jupiter, Mars, the Sun, Venus, Mercury and the Moon, and they take rulership over the hours in this sequence. The sequence is from slowest- to fastest-moving as the planets appear in the night sky, and so is from furthest to nearest in the planetary spheres model. This order has come to be known as the ...
The green flash also may be observed in association with the Moon and bright planets at the horizon, including Venus and Jupiter. [ 2 ] [ 3 ] [ 4 ] With an unrestricted view of the horizon, green flashes are regularly seen by airline pilots , particularly when flying westwards as the sunset is slowed. [ 2 ]
Astronomers have made several attempts to link the star to unusual celestial events, such as a conjunction of Jupiter and Saturn or Jupiter and Venus, [5] a comet, or a supernova. [6] Some modern scholars do not consider the story to be describing a historical event, but rather a pious fiction added later to the main gospel account. [7]
A historic extraterrestrial sky—Earthrise, the Earthviewed from the Moon. Taken by Apollo 8astronaut William Anderswhile in lunar orbit, December 24, 1968. In astronomy, an extraterrestrial skyis a view of outer spacefrom the surface of an astronomical body other than Earth.