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30 relations: Akari (satellite), Albedo, Asteroid, Asteroid belt, Asteroid spectral types, Astronomical unit, Degree (angle), Ecliptic, Hour, IRAS, Iso-Heikkilä Observatory, Jet Propulsion Laboratory, Julian day, Julian year (astronomy), Kirkwood gap, List of Esperanto speakers, List of Mars-crossing minor planets, List of minor planet discoverers, Minor planet, Minor Planet Center, Orbital eccentricity, Orbital inclination, P-type asteroid, Rotation period, Springer Science+Business Media, Wide-field Infrared Survey Explorer, X-type asteroid, Yrjö Väisälä, 132 Aethra, 323 Brucia.
Akari (satellite)
Akari (ASTRO-F) is an infrared astronomy satellite developed by Japan Aerospace Exploration Agency, in cooperation with institutes of Europe and Korea.
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Albedo
Albedo (albedo, meaning "whiteness") is the measure of the diffuse reflection of solar radiation out of the total solar radiation received by an astronomical body (e.g. a planet like Earth).
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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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Asteroid spectral types
An asteroid spectral type is assigned to asteroids based on their emission spectrum, color, and sometimes albedo (reflectivity).
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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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Degree (angle)
A degree (in full, a degree of arc, arc degree, or arcdegree), usually denoted by ° (the degree symbol), is a measurement of a plane angle, defined so that a full rotation is 360 degrees.
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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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Hour
An hour (symbol: h; also abbreviated hr.) is a unit of time conventionally reckoned as of a day and scientifically reckoned as 3,599–3,601 seconds, depending on conditions.
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IRAS
The Infrared Astronomical Satellite (IRAS) was the first-ever space telescope to perform a survey of the entire night sky at infrared wavelengths.
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Iso-Heikkilä Observatory
Iso-Heikkilä Observatory (Iso-Heikkilän tähtitorni) is an amateur astronomical observatory used by a local amateur astronomical association, Turun Ursa ry in the Iso-Heikkilä district of Turku, Finland.
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Jet Propulsion Laboratory
The Jet Propulsion Laboratory (JPL) is a federally funded research and development center and NASA field center in Pasadena, California, United States, with large portions of the campus in La Cañada Flintridge, California.
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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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Kirkwood gap
A Kirkwood gap is a gap or dip in the distribution of the semi-major axes (or equivalently of the orbital periods) of the orbits of main-belt asteroids.
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List of Esperanto speakers
An Esperantist (Esperantisto) is a person who speaks Esperanto.
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List of Mars-crossing minor planets
A Mars-crossing asteroid (MCA, also Mars-crosser, MC) is an asteroid whose orbit crosses that of Mars.
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List of minor planet discoverers
This is a list of all astronomers who are credited by the Minor Planet Center (MPC) with the discovery of one or several minor planets.
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Minor planet
A minor planet is an astronomical object in direct orbit around the Sun (or more broadly, any star with a planetary system) that is neither a planet nor exclusively classified as a comet.
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Minor Planet Center
The Minor Planet Center (MPC) is the official worldwide organization in charge of collecting observational data for minor planets (such as asteroids and comets), calculating their orbits and publishing this information via the Minor Planet Circulars.
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Orbital eccentricity
The orbital eccentricity of an astronomical object is a parameter that determines the amount by which its orbit around another body deviates from a perfect circle.
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Orbital inclination
Orbital inclination measures the tilt of an object's orbit around a celestial body.
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P-type asteroid
P-type asteroids have low albedo and a featureless reddish spectrum.
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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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Springer Science+Business Media
Springer Science+Business Media or Springer, part of Springer Nature since 2015, is a global publishing company that publishes books, e-books and peer-reviewed journals in science, humanities, technical and medical (STM) publishing.
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Wide-field Infrared Survey Explorer
Wide-field Infrared Survey Explorer (WISE) is a NASA infrared-wavelength astronomical space telescope launched in December 2009, and placed in hibernation in February 2011.
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X-type asteroid
The X-group of asteroids collects together several types with similar spectra, but probably quite different compositions.
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Yrjö Väisälä
Yrjö Väisälä (6 September 1891 in Utra, Kontiolahti, Grand Duchy of Finland – 21 July 1971 in Rymättylä, Finland) was a Finnish astronomer and physicist.
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132 Aethra
132 Aethra is a metallic asteroid and Mars-crosser on an eccentric orbit from the asteroid belt.
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323 Brucia
323 Brucia is a stony Phocaea asteroid and former Mars-crosser from the inner regions of the asteroid belt, approximately in diameter.
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References
[1] https://en.wikipedia.org/wiki/2204_Lyyli
