Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Install
Faster access than browser!
 

Chi Geminorum

Index Chi Geminorum

Chi Geminorum (χ Gem) is a binary star system in the constellation Gemini, near the western border with Cancer. [1]

31 relations: Apparent magnitude, Barium star, Bayer designation, Binary star, Bright Star Catalogue, Cancer (constellation), Catalogues of Fundamental Stars, Constellation, Durchmusterung, Effective temperature, Epoch (astronomy), Gemini (constellation), Giant star, Henry Draper Catalogue, Hipparcos, International Celestial Reference System, Light-year, Minute and second of arc, Orbital eccentricity, Orbital period, SIMBAD, Smithsonian Astrophysical Observatory Star Catalog, Solar luminosity, Solar mass, Solar radius, Stellar atmosphere, Stellar classification, Stellar parallax, Stellar rotation, Sun, White dwarf.

Apparent magnitude

The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.

New!!: Chi Geminorum and Apparent magnitude · See more »

Barium star

Barium stars are spectral class G to K giants, whose spectra indicate an overabundance of s-process elements by the presence of singly ionized barium, Ba II, at λ 455.4 nm.

New!!: Chi Geminorum and Barium star · See more »

Bayer designation

A Bayer designation is a stellar designation in which a specific star is identified by a Greek letter, followed by the genitive form of its parent constellation's Latin name.

New!!: Chi Geminorum and Bayer designation · See more »

Binary star

A binary star is a star system consisting of two stars orbiting around their common barycenter.

New!!: Chi Geminorum and Binary star · See more »

Bright Star Catalogue

The Bright Star Catalogue, also known as the Yale Catalogue of Bright Stars or Yale Bright Star Catalogue, is a star catalogue that lists all stars of stellar magnitude 6.5 or brighter, which is roughly every star visible to the naked eye from Earth.

New!!: Chi Geminorum and Bright Star Catalogue · See more »

Cancer (constellation)

Cancer is one of the twelve constellations of the zodiac.

New!!: Chi Geminorum and Cancer (constellation) · See more »

Catalogues of Fundamental Stars

The Catalogue of Fundamental Stars is a series of six astrometric catalogues of high precision positional data for a small selection of stars to define a celestial reference frame, which is a standard coordinate system for measuring positions of stars.

New!!: Chi Geminorum and Catalogues of Fundamental Stars · See more »

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.

New!!: Chi Geminorum and Constellation · See more »

Durchmusterung

In astronomy, Durchmusterung or Bonner Durchmusterung (BD), is the comprehensive astrometric star catalogue of the whole sky, compiled by the Bonn Observatory (Germany) from 1859 to 1903.

New!!: Chi Geminorum and Durchmusterung · See more »

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.

New!!: Chi Geminorum and Effective temperature · See more »

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.

New!!: Chi Geminorum and Epoch (astronomy) · See more »

Gemini (constellation)

Gemini is one of the constellations of the zodiac.

New!!: Chi Geminorum and Gemini (constellation) · See more »

Giant star

A giant star is a star with substantially larger radius and luminosity than a main-sequence (or dwarf) star of the same surface temperature.

New!!: Chi Geminorum and Giant star · See more »

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.

New!!: Chi Geminorum and Henry Draper Catalogue · See more »

Hipparcos

Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993.

New!!: Chi Geminorum and Hipparcos · See more »

International Celestial Reference System

The International Celestial Reference System (ICRS) is the current standard celestial reference system adopted by the International Astronomical Union (IAU).

New!!: Chi Geminorum and International Celestial Reference System · See more »

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.

New!!: Chi Geminorum and Light-year · See more »

Minute and second of arc

A minute of arc, arcminute (arcmin), arc minute, or minute arc is a unit of angular measurement equal to of one degree.

New!!: Chi Geminorum and Minute and second of arc · See more »

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.

New!!: Chi Geminorum and Orbital eccentricity · See more »

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.

New!!: Chi Geminorum and Orbital period · See more »

SIMBAD

SIMBAD (the Set of Identifications, Measurements, and Bibliography for Astronomical Data) is an astronomical database of objects beyond the Solar System.

New!!: Chi Geminorum and SIMBAD · See more »

Smithsonian Astrophysical Observatory Star Catalog

The Smithsonian Astrophysical Observatory Star Catalog is an astrometric star catalogue.

New!!: Chi Geminorum and Smithsonian Astrophysical Observatory Star Catalog · See more »

Solar luminosity

The solar luminosity,, is a unit of radiant flux (power emitted in the form of photons) conventionally used by astronomers to measure the luminosity of stars, galaxies and other celestial objects in terms of the output of the Sun.

New!!: Chi Geminorum and Solar luminosity · See more »

Solar mass

The solar mass is a standard unit of mass in astronomy, equal to approximately.

New!!: Chi Geminorum and Solar mass · See more »

Solar radius

Solar radius is a unit of distance used to express the size of stars in astronomy.

New!!: Chi Geminorum and Solar radius · See more »

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.

New!!: Chi Geminorum and Stellar atmosphere · See more »

Stellar classification

In astronomy, stellar classification is the classification of stars based on their spectral characteristics.

New!!: Chi Geminorum and Stellar classification · See more »

Stellar parallax

Stellar parallax is the apparent shift of position of any nearby star (or other object) against the background of distant objects.

New!!: Chi Geminorum and Stellar parallax · See more »

Stellar rotation

Stellar rotation is the angular motion of a star about its axis.

New!!: Chi Geminorum and Stellar rotation · See more »

Sun

The Sun is the star at the center of the Solar System.

New!!: Chi Geminorum and Sun · See more »

White dwarf

A white dwarf, also called a degenerate dwarf, is a stellar core remnant composed mostly of electron-degenerate matter.

New!!: Chi Geminorum and White dwarf · See more »

Redirects here:

6 Cancri, Χ Geminorum.

References

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

OutgoingIncoming
Hey! We are on Facebook now! »