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1091 Spiraea, the Glossary

1091 Spiraea, provisional designation, is a carbonaceous Cybele asteroid from the outer regions of the asteroid belt, approximately 36 kilometers in diameter.^[1]

37 relations: Absolute magnitude, Akari (satellite), Albedo, Asteroid, Asteroid belt, Asteroid family, Astronomical unit, C-type asteroid, Cybele asteroids, Degree (angle), Ecliptic, Flowering plant, Heidelberg-Königstuhl State Observatory, Hour, Jet Propulsion Laboratory, Julian day, Julian year (astronomy), Karl Wilhelm Reinmuth, Kirkwood gap, Light curve, Magnitude (astronomy), Minor planet, Observation arc, Orbital eccentricity, Orbital inclination, Orbital resonance, Palomar Transient Factory, Paul Herget, Rosaceae, Rotation period (astronomy), Royal Observatory of Belgium, Shrub, Spiraea, Springer Science+Business Media, Wide-field Infrared Survey Explorer, 1054 Forsytia, 65 Cybele.
Astronomical objects discovered in 1928
Cybele asteroids

Absolute magnitude

In astronomy, absolute magnitude is a measure of the luminosity of a celestial object on an inverse logarithmic astronomical magnitude scale.

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Akari (satellite)

AKARI (ASTRO-F) was an infrared astronomy satellite developed by Japan Aerospace Exploration Agency, in cooperation with institutes of Europe and Korea.

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Albedo

Albedo is the fraction of sunlight that is diffusely reflected by a body.

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Asteroid

An asteroid is a minor planet—an object that is neither a true planet nor an identified comet— that orbits within the inner Solar System.

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Asteroid belt

The asteroid belt is a torus-shaped region in the Solar System, centered on the Sun and roughly spanning the space between the orbits of the planets Jupiter and Mars.

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Asteroid family

An asteroid family is a population of asteroids that share similar proper orbital elements, such as semimajor axis, eccentricity, and orbital inclination.

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Astronomical unit

The astronomical unit (symbol: au, or AU) is a unit of length defined to be exactly equal to.

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C-type asteroid

C-type (carbonaceous) asteroids are the most common variety, forming around 75% of known asteroids.

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Cybele asteroids

The Cybele asteroids (also known as the "Cybeles") are a dynamical group of asteroids, named after the asteroid 65 Cybele.

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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 in which one full rotation is 360 degrees.

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Ecliptic

The ecliptic or ecliptic plane is the orbital plane of Earth around the Sun.

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Flowering plant

Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae, commonly called angiosperms.

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Heidelberg-Königstuhl State Observatory

Heidelberg-Königstuhl State Observatory (Landessternwarte Heidelberg-Königstuhl) is a historic astronomical observatory located near the summit of the Königstuhl hill in the city of Heidelberg in Germany.

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Hour

An hour (symbol: h; also abbreviated hr) is a unit of time historically reckoned as of a day and defined contemporarily as exactly 3,600 seconds (SI).

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Jet Propulsion Laboratory

Jet Propulsion Laboratory (JPL) is a Federally Funded Research and Development Center (FFRDC) in La Cañada Flintridge, California, Crescenta Valley, United States.

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Julian day

The Julian day is the continuous count of days since the beginning of the Julian period, and is used primarily by astronomers, and in software for easily calculating elapsed days between two events (e.g. food production date and sell by date).

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Julian year (astronomy)

In astronomy, a Julian year (symbol: a or aj) is a unit of measurement of time defined as exactly 365.25 days of SI seconds each.

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Karl Wilhelm Reinmuth

Karl Wilhelm Reinmuth (4 April 1892 in Heidelberg – 6 May 1979 in Heidelberg) was a German astronomer and a prolific discoverer of 395 minor planets. 1091 Spiraea and Karl Wilhelm Reinmuth are Discoveries by Karl Wilhelm Reinmuth.

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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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Light curve

In astronomy, a light curve is a graph of the light intensity of a celestial object or region as a function of time, typically with the magnitude of light received on the y-axis and with time on the x-axis.

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Magnitude (astronomy)

In astronomy, magnitude is measure of the brightness of an object, usually in a defined passband.

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Minor planet

According to the International Astronomical Union (IAU), a minor planet is an astronomical object in direct orbit around the Sun that is exclusively classified as neither a planet nor a comet.

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Observation arc

In observational astronomy, the observation arc (or arc length) of a Solar System body is the time period between its earliest and latest observations, used for tracing the body's path.

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Orbital eccentricity

In astrodynamics, the orbital eccentricity of an astronomical object is a dimensionless 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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Orbital resonance

In celestial mechanics, orbital resonance occurs when orbiting bodies exert regular, periodic gravitational influence on each other, usually because their orbital periods are related by a ratio of small integers.

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Palomar Transient Factory

The Palomar Transient Factory (PTF, obs. code: I41), was an astronomical survey using a wide-field survey camera designed to search for optical transient and variable sources such as variable stars, supernovae, asteroids and comets.

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Paul Herget

Paul Herget (January 30, 1908 – August 27, 1981) was an American astronomer and director of the Cincinnati Observatory, who established the Minor Planet Center after World War II.

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Rosaceae

Rosaceae (-si.eɪ), the rose family, is a medium-sized family of flowering plants that includes 4,828 known species in 91 genera.

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Rotation period (astronomy)

In astronomy, the rotation period or spin period of a celestial object (e.g., star, planet, moon, asteroid) has two definitions.

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Royal Observatory of Belgium

The Royal Observatory of Belgium (Observatoire Royal de Belgique; Koninklijke Sterrenwacht van België) has been situated in the Uccle municipality of Brussels since 1890.

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Shrub

A shrub or bush is a small-to-medium-sized perennial woody plant.

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Spiraea

Spiraea, sometimes spelled spirea in common names, and commonly known as meadowsweets or steeplebushes, is a genus of about 80 to 100 species Flora of China.

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Springer Science+Business Media, commonly known as Springer, is a German multinational publishing company of 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, observatory code C51, Explorer 92 and MIDEX-6) is a NASA infrared astronomy space telescope in the Explorers Program launched in December 2009.

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1054 Forsytia

1054 Forsytia is a dark background asteroid, approximately 46 kilometers in diameter, from the outer regions of the asteroid belt. 1091 Spiraea and 1054 Forsytia are Discoveries by Karl Wilhelm Reinmuth, minor planet object articles (numbered) and named minor planets.

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65 Cybele

Cybele, minor planet designation 65 Cybele, is one of the largest asteroids in the Solar System. 1091 Spiraea and 65 Cybele are Cybele asteroids, minor planet object articles (numbered) and named minor planets.

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References

[1] https://en.wikipedia.org/wiki/1091_Spiraea

1091 Spiraea, the Glossary

Table of Contents

See also

Astronomical objects discovered in 1928

Cybele asteroids

References