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HD 172555

Index HD 172555

HD 172555 is a white-hot A7V star located relatively close by, 95 light years from Earth in the direction of the constellation Pavo. [1]

31 relations: Astronomy & Astrophysics, Beta Pictoris, Beta Pictoris moving group, Chromatography, Constellation, Discover (magazine), Earth, Epoch (astronomy), Frost line (astrophysics), Henry Draper Catalogue, Infrared, IRAS, Johns Hopkins University, Light-year, Lunar and Planetary Institute, Mercury (planet), Moon, NASA, Obsidian, Pavo (constellation), Silicon monoxide, Solar System, Spectrometer, Spitzer Space Telescope, Star, Tektite, The Astrophysical Journal, Uranus, Venus, 2M1207b, 4 Vesta.

Astronomy & Astrophysics

Astronomy & Astrophysics is a peer-reviewed scientific journal covering theoretical, observational, and instrumental astronomy and astrophysics.

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Beta Pictoris

Beta Pictoris (β Pic, β Pictoris) is the second brightest star in the constellation Pictor.

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Beta Pictoris moving group

The Beta Pictoris Moving Group is a young moving group of stars located relatively near Earth.

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Chromatography

Chromatography is a laboratory technique for the separation of a mixture.

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Constellation

A constellation is a group of stars that are considered to form imaginary outlines or meaningful patterns on the celestial sphere, typically representing animals, mythological people or gods, mythological creatures, or manufactured devices.

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Discover (magazine)

Discover is an American general audience science magazine launched in October 1980 by Time Inc.

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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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Epoch (astronomy)

In astronomy, an epoch is a moment in time used as a reference point for some time-varying astronomical quantity, such as the celestial coordinates or elliptical orbital elements of a celestial body, because these are subject to perturbations and vary with time.

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Frost line (astrophysics)

In astronomy or planetary science, the frost line, also known as the snow line or ice line, is the particular distance in the solar nebula from the central protostar where it is cold enough for volatile compounds such as water, ammonia, methane, carbon dioxide, carbon monoxide to condense into solid ice grains.

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Henry Draper Catalogue

The Henry Draper Catalogue (HD) is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; it was later expanded by the Henry Draper Extension (HDE), published between 1925 and 1936, which gave classifications for 46,850 more stars, and by the Henry Draper Extension Charts (HDEC), published from 1937 to 1949 in the form of charts, which gave classifications for 86,933 more stars.

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Infrared

Infrared radiation (IR) is electromagnetic radiation (EMR) with longer wavelengths than those of visible light, and is therefore generally invisible to the human eye (although IR at wavelengths up to 1050 nm from specially pulsed lasers can be seen by humans under certain conditions). It is sometimes called infrared light.

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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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Johns Hopkins University

Johns Hopkins University is an American private research university in Baltimore, Maryland.

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Light-year

The light-year is a unit of length used to express astronomical distances and measures about 9.5 trillion kilometres or 5.9 trillion miles.

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Lunar and Planetary Institute

The Lunar and Planetary Institute (LPI) is a scientific research institute dedicated to study of the solar system, its formation, evolution, and current state.

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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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NASA

The National Aeronautics and Space Administration (NASA) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research.

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Obsidian

Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock.

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Pavo (constellation)

Pavo is a constellation in the southern sky with the Latin name for peacock.

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Silicon monoxide

Silicon monoxide is the chemical compound with the formula SiO where silicon is present in the oxidation state +2.

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Solar System

The Solar SystemCapitalization of the name varies.

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Spectrometer

A spectrometer is a scientific instrument used to separate and measure spectral components of a physical phenomenon.

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Spitzer Space Telescope

The Spitzer Space Telescope (SST), formerly the Space Infrared Telescope Facility (SIRTF), is an infrared space telescope launched in 2003 and still operating as of 2018.

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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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Tektite

Tektites (from Greek τηκτός tēktós, "molten") are gravel-sized bodies composed of black, green, brown, or gray natural glass formed from terrestrial debris ejected during meteorite impacts.

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The Astrophysical Journal

The Astrophysical Journal, often abbreviated ApJ (pronounced "ap jay") in references and speech, is a peer-reviewed scientific journal of astrophysics and astronomy, established in 1895 by American astronomers George Ellery Hale and James Edward Keeler.

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Uranus

Uranus is the seventh planet from the Sun.

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Venus

Venus is the second planet from the Sun, orbiting it every 224.7 Earth days.

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2M1207b

2M1207b is a planetary-mass object orbiting the brown dwarf 2M1207, in the constellation Centaurus, approximately 170 light-years from Earth.

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4 Vesta

Vesta, minor-planet designation 4 Vesta, is one of the largest objects in the asteroid belt, with a mean diameter of.

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Redirects here:

HD-172555, HD172555.

References

[1] https://en.wikipedia.org/wiki/HD_172555

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