20 relations: Amplitude, Asteroid, Asteroid belt, Astronomical unit, Commensurability (astronomy), Düsseldorf, Greek mythology, Julian day, Julian year (astronomy), Jupiter, Light curve, Martin Hoek, Mnemosyne, Orbital period, Photometry (astronomy), Robert Luther, Rotation period, S-type asteroid, Sonnenborgh Observatory, Titan (mythology).
Amplitude
The amplitude of a periodic variable is a measure of its change over a single period (such as time or spatial period).
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Asteroid
Asteroids are minor planets, especially those of the inner Solar System.
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Asteroid belt
The asteroid belt is the circumstellar disc in the Solar System located roughly between the orbits of the planets Mars and Jupiter.
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Astronomical unit
The astronomical unit (symbol: au, ua, or AU) is a unit of length, roughly the distance from Earth to the Sun.
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Commensurability (astronomy)
Commensurability is the property of two orbiting objects, such as planets, satellites, or asteroids, whose orbital periods are in a rational proportion.
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Düsseldorf
Düsseldorf (Low Franconian, Ripuarian: Düsseldörp), often Dusseldorf in English sources, is the capital city of the German state of North Rhine-Westphalia and the seventh most populous city in Germany. Düsseldorf is an international business and financial centre, renowned for its fashion and trade fairs.
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Greek mythology
Greek mythology is the body of myths and teachings that belong to the ancient Greeks, concerning their gods and heroes, the nature of the world, and the origins and significance of their own cult and ritual practices.
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Julian day
Julian day is the continuous count of days since the beginning of the Julian Period and is used primarily by astronomers.
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Julian year (astronomy)
In astronomy, a Julian year (symbol: a) is a unit of measurement of time defined as exactly 365.25 days of SI seconds each.
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Jupiter
Jupiter is the fifth planet from the Sun and the largest in the Solar System.
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Light curve
In astronomy, a light curve is a graph of light intensity of a celestial object or region, as a function of time.
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Martin Hoek
Martin Hoek (also Martinus) (13 December 1834 in The Hague – 3 September 1873 in Utrecht) was a Dutch astronomer and experimental physicist.
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Mnemosyne
Mnemosyne (Μνημοσύνη) is the goddess of memory in Greek mythology.
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Orbital period
The orbital period is the time a given astronomical object takes to complete one orbit around another object, and applies in astronomy usually to planets or asteroids orbiting the Sun, moons orbiting planets, exoplanets orbiting other stars, or binary stars.
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Photometry (astronomy)
Photometry is a technique of astronomy concerned with measuring the flux, or intensity of an astronomical object's electromagnetic radiation.
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Robert Luther
Karl Theodor Robert Luther (April 16, 1822 – February 15, 1900), normally published as Robert Luther, was a German astronomer.
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Rotation period
In astronomy, the rotation period of a celestial object is the time that it takes to complete one revolution around its axis of rotation relative to the background stars.
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S-type asteroid
S-type asteroids are asteroids with a spectral type that is indicative of a silicaceous (i.e. stony) mineralogical composition, hence the name.
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Sonnenborgh Observatory
Sonnenborgh Observatory (Museum Sterrenwacht Sonnenborgh; Sonnenborgh museum & sterrenwacht; obs. code: 015) is an astronomical observatory and museum open to the public, located in Utrecht, Netherlands.
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Titan (mythology)
In Greek mythology, the Titans (Greek: Τιτάν, Titán, Τiτᾶνες, Titânes) and Titanesses (or Titanides; Greek: Τιτανίς, Titanís, Τιτανίδες, Titanídes) were members of the second generation of divine beings, descending from the primordial deities and preceding the Olympians.
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