18 Scorpii, the Glossary
18 Scorpii is a solitary star located at a distance of some from the Sun at the northern edge of the Scorpius constellation.[1]
Table of Contents
37 relations: Apparent magnitude, Asteroseismology, Astronomical interferometer, Bortle scale, Catalog of Nearby Habitable Systems, Debris disk, Doppler spectroscopy, Effective temperature, Epoch (astronomy), European Southern Observatory, HIP 56948, Infrared excess, Life, Main sequence, Margaret Turnbull, Metallicity, Monthly Notices of the Royal Astronomical Society, Nuclear fusion, Photometry (astronomy), Radial velocity, Scorpius, Solar analog, Solar mass, Solar radius, Star, Stellar atmosphere, Stellar classification, Stellar corona, Sun, Super-Earth, The Astronomical Journal, The Astronomy and Astrophysics Review, The Astrophysical Journal, Tucson, Arizona, University of Arizona, X-ray astronomy, Zeeman–Doppler imaging.
- Solar twins
Apparent magnitude
Apparent magnitude is a measure of the brightness of a star or other astronomical object.
See 18 Scorpii and Apparent magnitude
Asteroseismology
Asteroseismology is the study of oscillations in stars.
See 18 Scorpii and Asteroseismology
Astronomical interferometer
An astronomical interferometer or telescope array is a set of separate telescopes, mirror segments, or radio telescope antennas that work together as a single telescope to provide higher resolution images of astronomical objects such as stars, nebulas and galaxies by means of interferometry.
See 18 Scorpii and Astronomical interferometer
Bortle scale
The Bortle dark-sky scale (usually referred to as simply the Bortle scale) is a nine-level numeric scale that measures the night sky's brightness of a particular location.
See 18 Scorpii and Bortle scale
Catalog of Nearby Habitable Systems
The Catalog of Nearby Habitable Systems (HabCat) is a catalogue of star systems which conceivably have habitable planets.
See 18 Scorpii and Catalog of Nearby Habitable Systems
Debris disk
A debris disk (American English), or debris disc (Commonwealth English), is a circumstellar disk of dust and debris in orbit around a star.
See 18 Scorpii and Debris disk
Doppler spectroscopy
Doppler spectroscopy (also known as the radial-velocity method, or colloquially, the wobble method) is an indirect method for finding extrasolar planets and brown dwarfs from radial-velocity measurements via observation of Doppler shifts in the spectrum of the planet's parent star.
See 18 Scorpii and Doppler spectroscopy
Effective temperature
The effective temperature of a body such as a star or planet is the temperature of a black body that would emit the same total amount of electromagnetic radiation.
See 18 Scorpii and Effective temperature
Epoch (astronomy)
In astronomy, an epoch or reference epoch is a moment in time used as a reference point for some time-varying astronomical quantity.
See 18 Scorpii and Epoch (astronomy)
European Southern Observatory
The European Organisation for Astronomical Research in the Southern Hemisphere, commonly referred to as the European Southern Observatory (ESO), is an intergovernmental research organisation made up of 16 member states for ground-based astronomy.
See 18 Scorpii and European Southern Observatory
HIP 56948
HIP 56948 (also known as HD 101364) is a solar twin star of type G5V. 18 Scorpii and HIP 56948 are g-type main-sequence stars, Henry Draper Catalogue objects, Hipparcos objects and solar twins.
Infrared excess
An infrared excess is a measurement of an astronomical source, typically a star, that in their spectral energy distribution has a greater measured infrared flux than expected by assuming the star is a blackbody radiator.
See 18 Scorpii and Infrared excess
Life
Life is a quality that distinguishes matter that has biological processes, such as signaling and self-sustaining processes, from matter that does not.
Main sequence
In astronomy, the main sequence is a classification of stars which appear on plots of stellar color versus brightness as a continuous and distinctive band.
See 18 Scorpii and Main sequence
Margaret Turnbull
Margaret Carol "Maggie" Turnbull (born 1975) is an American astronomer and astrobiologist.
See 18 Scorpii and Margaret Turnbull
In astronomy, metallicity is the abundance of elements present in an object that are heavier than hydrogen and helium.
See 18 Scorpii and Metallicity
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal in astronomy, astrophysics and related fields.
See 18 Scorpii and Monthly Notices of the Royal Astronomical Society
Nuclear fusion
Nuclear fusion is a reaction in which two or more atomic nuclei, usually deuterium and tritium (hydrogen isotopes), combine to form one or more different atomic nuclei and subatomic particles (neutrons or protons).
See 18 Scorpii and Nuclear fusion
Photometry (astronomy)
In astronomy, photometry, from Greek photo- ("light") and -metry ("measure"), is a technique used in astronomy that is concerned with measuring the flux or intensity of light radiated by astronomical objects.
See 18 Scorpii and Photometry (astronomy)
Radial velocity
The radial velocity or line-of-sight velocity of a target with respect to an observer is the rate of change of the vector displacement between the two points.
See 18 Scorpii and Radial velocity
Scorpius
Scorpius is a zodiac constellation located in the Southern celestial hemisphere, where it sits near the center of the Milky Way, between Libra to the west and Sagittarius to the east.
Solar analog
Solar-type stars, solar analogs (also analogues), and solar twins are stars that are particularly similar to the Sun. 18 Scorpii and solar analog are solar analogs.
See 18 Scorpii and Solar analog
Solar mass
The solar mass is a standard unit of mass in astronomy, equal to approximately.
Solar radius
Solar radius is a unit of distance used to express the size of stars in astronomy relative to the Sun.
See 18 Scorpii and Solar radius
Star
A star is a luminous spheroid of plasma held together by self-gravity.
Stellar atmosphere
The stellar atmosphere is the outer region of the volume of a star, lying above the stellar core, radiation zone and convection zone.
See 18 Scorpii and Stellar atmosphere
Stellar classification
In astronomy, stellar classification is the classification of stars based on their spectral characteristics.
See 18 Scorpii and Stellar classification
Stellar corona
A corona (coronas or coronae) is the outermost layer of a star's atmosphere.
See 18 Scorpii and Stellar corona
Sun
The Sun is the star at the center of the Solar System. 18 Scorpii and Sun are g-type main-sequence stars.
Super-Earth
A Super-Earth is a type of exoplanet with a mass higher than Earth's, but substantially below those of the Solar System's ice giants, Uranus and Neptune, which are 14.5 and 17 times Earth's, respectively.
See 18 Scorpii and Super-Earth
The Astronomical Journal
The Astronomical Journal (often abbreviated AJ in scientific papers and references) is a peer-reviewed monthly scientific journal owned by the American Astronomical Society (AAS) and currently published by IOP Publishing.
See 18 Scorpii and The Astronomical Journal
The Astronomy and Astrophysics Review
The Astronomy and Astrophysics Review is a peer-reviewed scientific journal that is published quarterly by Springer-Verlag GmbH Germany, part of Springer Nature.
See 18 Scorpii and The Astronomy and Astrophysics Review
The Astrophysical Journal
The Astrophysical Journal (ApJ) is a peer-reviewed scientific journal of astrophysics and astronomy, established in 1895 by American astronomers George Ellery Hale and James Edward Keeler.
See 18 Scorpii and The Astrophysical Journal
Tucson, Arizona
Tucson (Cuk Ṣon; Tucsón) is a city in and the county seat of Pima County, Arizona, United States, and is home to the University of Arizona.
See 18 Scorpii and Tucson, Arizona
University of Arizona
The University of Arizona (Arizona, U of A, UArizona, or UA) is a public land-grant research university in Tucson, Arizona.
See 18 Scorpii and University of Arizona
X-ray astronomy
X-ray astronomy is an observational branch of astronomy which deals with the study of X-ray observation and detection from astronomical objects.
See 18 Scorpii and X-ray astronomy
Zeeman–Doppler imaging
In astrophysics, Zeeman–Doppler imaging is a tomographic technique dedicated to the cartography of stellar magnetic fields, as well as surface brightness and temperature distributions.
See 18 Scorpii and Zeeman–Doppler imaging
See also
Solar twins
References
[1] https://en.wikipedia.org/wiki/18_Scorpii
Also known as 18 Sco, GJ 616, GJ616, Gl 616, Gl616, Gliese 616, HD 146233, HD146233, HIP 79672, HIP79672, HR 6060, HR6060.