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46 relations: Apparent retrograde motion, Appulse, Asteroid, Astrometry, Astronomical object, Astronomical symbols, Astronomy, Celestial sphere, Comet, Declination, Earth, Eclipse, Ecliptic, Ecliptic coordinate system, Elongation (astronomy), Great conjunction, Hour angle, Inferior and superior planets, Jupiter, Line (geometry), Lunar eclipse, Mars, Mercury (planet), Moon, Naked eye, New moon, Occultation, Opposition (planets), Perspective (graphical), Planet, Right ascension, Saturn, Solar eclipse, Solar System, Space, Spacecraft, Spherical astronomy, Star, Sun, Syzygy (astronomy), Transit (astronomy), Transit of Mercury, Transit of Venus, Triple conjunction, Unicode, Venus.
Apparent retrograde motion
Apparent retrograde motion is the apparent motion of a planet in a direction opposite to that of other bodies within its system, as observed from a particular vantage point.
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Appulse
Appulse is an astronomical term that refers to the shortest apparent distance between one celestial object and another, as seen from a third body during a given period.
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Asteroid
Asteroids are minor planets, especially those of the inner Solar System.
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Astrometry
Astrometry is the branch of astronomy that involves precise measurements of the positions and movements of stars and other celestial bodies.
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Astronomical object
An astronomical object or celestial object is a naturally occurring physical entity, association, or structure that exists in the observable universe.
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Astronomical symbols
Astronomical symbols are symbols used to represent astronomical objects, theoretical constructs and observational events in astronomy.
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Astronomy
Astronomy (from ἀστρονομία) is a natural science that studies celestial objects and phenomena.
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Celestial sphere
In astronomy and navigation, the celestial sphere is an abstract sphere with an arbitrarily large radius concentric to Earth.
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Comet
A comet is an icy small Solar System body that, when passing close to the Sun, warms and begins to release gases, a process called outgassing.
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Declination
In astronomy, declination (abbreviated dec; symbol δ) is one of the two angles that locate a point on the celestial sphere in the equatorial coordinate system, the other being hour angle.
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Earth
Earth is the third planet from the Sun and the only astronomical object known to harbor life.
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Eclipse
An eclipse is an astronomical event that occurs when an astronomical object is temporarily obscured, either by passing into the shadow of another body or by having another body pass between it and the viewer.
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Ecliptic
The ecliptic is the circular path on the celestial sphere that the Sun follows over the course of a year; it is the basis of the ecliptic coordinate system.
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Ecliptic coordinate system
The ecliptic coordinate system is a celestial coordinate system commonly used for representing the apparent positions and orbits of Solar System objects.
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Elongation (astronomy)
In astronomy, a planet's elongation is the angular separation between the Sun and the planet, with Earth as the reference point.
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Great conjunction
A great conjunction is a conjunction of the planets Jupiter and Saturn.
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Hour angle
In astronomy and celestial navigation, the hour angle is one of the coordinates used in the equatorial coordinate system to give the direction of a point on the celestial sphere.
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Inferior and superior planets
In the Solar System, a planet is said to be inferior with respect to another planet if its orbit lies inside the other planet's orbit around the Sun.
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Jupiter
Jupiter is the fifth planet from the Sun and the largest in the Solar System.
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Line (geometry)
The notion of line or straight line was introduced by ancient mathematicians to represent straight objects (i.e., having no curvature) with negligible width and depth.
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Lunar eclipse
A lunar eclipse occurs when the Moon passes directly behind Earth and into its shadow.
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Mars
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System after Mercury.
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Mercury (planet)
Mercury is the smallest and innermost planet in the Solar System.
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Moon
The Moon is an astronomical body that orbits planet Earth and is Earth's only permanent natural satellite.
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Naked eye
Naked eye, also called bare eye or unaided eye, is the practice of engaging in visual perception unaided by a magnifying or light-collecting optical instrument, such as a telescope or microscope.
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New moon
In astronomy, the new moon is the first lunar phase, when the Moon and Sun have the same ecliptic longitude.
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Occultation
An occultation is an event that occurs when one object is hidden by another object that passes between it and the observer.
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Opposition (planets)
In positional astronomy, two astronomical objects are said to be in opposition when they are on opposite sides of the celestial sphere, as observed from a given body (usually Earth).
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Perspective (graphical)
Perspective (from perspicere "to see through") in the graphic arts is an approximate representation, generally on a flat surface (such as paper), of an image as it is seen by the eye.
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Planet
A planet is an astronomical body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals.
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Right ascension
Right ascension (abbreviated RA; symbol) is the angular distance measured only eastward along the celestial equator from the Sun at the March equinox to the (hour circle of the) point above the earth in question.
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Saturn
Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter.
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Solar eclipse
A solar eclipse (as seen from the planet Earth) is a type of eclipse that occurs when the Moon passes between the Sun and Earth, and when the Moon fully or partially blocks ("occults") the Sun.
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Solar System
The Solar SystemCapitalization of the name varies.
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Space
Space is the boundless three-dimensional extent in which objects and events have relative position and direction.
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Spacecraft
A spacecraft is a vehicle or machine designed to fly in outer space.
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Spherical astronomy
Spherical astronomy or positional astronomy is the branch of astronomy that is used to determine the location of objects on the celestial sphere, as seen at a particular date, time, and location on Earth.
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Star
A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.
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Sun
The Sun is the star at the center of the Solar System.
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Syzygy (astronomy)
In astronomy, a syzygy (from the Ancient Greek σύζυγος suzugos meaning, "yoked together") is a (usually) straight-line configuration of three or more celestial bodies in a gravitational system.
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Transit (astronomy)
In astronomy, a transit or astronomical transit is the phenomenon of at least one celestial body appearing to move across the face of another celestial body, hiding a small part of it, as seen by an observer at some particular vantage point.
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Transit of Mercury
A transit of Mercury across the Sun takes place when the planet Mercury passes directly between the Sun and a superior planet, becoming visible against (and hence obscuring a small portion of) the solar disk.
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Transit of Venus
A transit of Venus across the Sun takes place when the planet Venus passes directly between the Sun and a superior planet, becoming visible against (and hence obscuring a small portion of) the solar disk.
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Triple conjunction
A triple conjunction is an astronomical event, where two planets or a planet and a star meet each other three times in a short period either in opposition or at the time of inferior conjunction, if an inferior planet is involved.
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Unicode
Unicode is a computing industry standard for the consistent encoding, representation, and handling of text expressed in most of the world's writing systems.
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Venus
Venus is the second planet from the Sun, orbiting it every 224.7 Earth days.
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Astrological conjunction, Astronomical conjunction, Conjunction (astrology), Conjunction (astronomy & astrology), Conjunction (astronomy and astrology), Inferior conjunction, Planetary conjunction, Superior Conjuntion, Superior conjunction, ☌.
References
[1] https://en.wikipedia.org/wiki/Conjunction_(astronomy)
