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

Mu Hydrae

Index Mu Hydrae

μ Hydrae, Latinised as Mu Hydrae, is a solitary, orange-hued star in the equatorial constellation of Hydra. [1]

30 relations: Apparent magnitude, Bayer designation, Bright Star Catalogue, Cambridge University Press, Catalogues of Fundamental Stars, Constellation, Durchmusterung, Effective temperature, Epoch (astronomy), Giant star, Henry Draper Catalogue, Hipparcos, Hydra (constellation), Hydrogen, International Celestial Reference System, Light-year, Minute and second of arc, Monthly Notices of the Royal Astronomical Society, NGC 3242, Planetary nebula, SIMBAD, Smithsonian Astrophysical Observatory Star Catalog, Solar radius, Star, Stellar atmosphere, Stellar classification, Stellar evolution, Stellar parallax, University of Michigan, Variable star.

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!!: Mu Hydrae and Apparent magnitude · 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!!: Mu Hydrae and Bayer designation · 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!!: Mu Hydrae and Bright Star Catalogue · See more »

Cambridge University Press

Cambridge University Press (CUP) is the publishing business of the University of Cambridge.

New!!: Mu Hydrae and Cambridge University Press · 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!!: Mu Hydrae 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!!: Mu Hydrae 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!!: Mu Hydrae 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!!: Mu Hydrae 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!!: Mu Hydrae and Epoch (astronomy) · 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!!: Mu Hydrae 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!!: Mu Hydrae 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!!: Mu Hydrae and Hipparcos · See more »

Hydra (constellation)

Hydra is the largest of the 88 modern constellations, measuring 1303 square degrees.

New!!: Mu Hydrae and Hydra (constellation) · See more »

Hydrogen

Hydrogen is a chemical element with symbol H and atomic number 1.

New!!: Mu Hydrae and Hydrogen · 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!!: Mu Hydrae 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!!: Mu Hydrae 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!!: Mu Hydrae and Minute and second of arc · See more »

Monthly Notices of the Royal Astronomical Society

Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal covering research in astronomy and astrophysics.

New!!: Mu Hydrae and Monthly Notices of the Royal Astronomical Society · See more »

NGC 3242

NGC 3242, commonly known as the Ghost of Jupiter, is a planetary nebula located in the constellation Hydra.

New!!: Mu Hydrae and NGC 3242 · See more »

Planetary nebula

A planetary nebula, abbreviated as PN or plural PNe, is a type of emission nebula consisting of an expanding, glowing shell of ionized gas ejected from red giant stars late in their lives.

New!!: Mu Hydrae and Planetary nebula · 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!!: Mu Hydrae and SIMBAD · See more »

Smithsonian Astrophysical Observatory Star Catalog

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

New!!: Mu Hydrae and Smithsonian Astrophysical Observatory Star Catalog · See more »

Solar radius

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

New!!: Mu Hydrae and Solar radius · See more »

Star

A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.

New!!: Mu Hydrae and Star · 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!!: Mu Hydrae and Stellar atmosphere · See more »

Stellar classification

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

New!!: Mu Hydrae and Stellar classification · See more »

Stellar evolution

Stellar evolution is the process by which a star changes over the course of time.

New!!: Mu Hydrae and Stellar evolution · 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!!: Mu Hydrae and Stellar parallax · See more »

University of Michigan

The University of Michigan (UM, U-M, U of M, or UMich), often simply referred to as Michigan, is a public research university in Ann Arbor, Michigan.

New!!: Mu Hydrae and University of Michigan · See more »

Variable star

A variable star is a star whose brightness as seen from Earth (its apparent magnitude) fluctuates.

New!!: Mu Hydrae and Variable star · See more »

Redirects here:

42 Hydrae, Μ Hydrae.

References

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

OutgoingIncoming
Hey! We are on Facebook now! »