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

Theta Coronae Borealis

Index Theta Coronae Borealis

Theta Coronae Borealis, Latinized from θ Coronae Borealis, is a binary star system in the constellation Corona Borealis. [1]

17 relations: A-type main-sequence star, Apparent magnitude, Astronomical unit, Barycenter, Bayer designation, Be star, Binary star, Constellation, Corona Borealis, Epoch (astronomy), International Celestial Reference System, Latinisation of names, Light-year, Main sequence, Red giant, Shell star, Stellar classification.

A-type main-sequence star

An A-type main-sequence star (A V) or A dwarf star is a main-sequence (hydrogen-burning) star of spectral type A and luminosity class V. These stars have spectra which are defined by strong hydrogen Balmer absorption lines.

New!!: Theta Coronae Borealis and A-type main-sequence star · See more »

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!!: Theta Coronae Borealis and Apparent magnitude · See more »

Astronomical unit

The astronomical unit (symbol: au, ua, or AU) is a unit of length, roughly the distance from Earth to the Sun.

New!!: Theta Coronae Borealis and Astronomical unit · See more »

Barycenter

The barycenter (or barycentre; from the Ancient Greek βαρύς heavy + κέντρον centre) is the center of mass of two or more bodies that are orbiting each other, which is the point around which they both orbit.

New!!: Theta Coronae Borealis and Barycenter · 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!!: Theta Coronae Borealis and Bayer designation · See more »

Be star

Be Stars are a heterogeneous set of stars with B spectral types and emission lines.

New!!: Theta Coronae Borealis and Be star · See more »

Binary star

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

New!!: Theta Coronae Borealis and Binary star · 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!!: Theta Coronae Borealis and Constellation · See more »

Corona Borealis

Corona Borealis is a small constellation in the Northern Celestial Hemisphere.

New!!: Theta Coronae Borealis and Corona Borealis · 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!!: Theta Coronae Borealis and Epoch (astronomy) · 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!!: Theta Coronae Borealis and International Celestial Reference System · See more »

Latinisation of names

Latinisation or Latinization is the practice of rendering a non-Latin name (or word) in a Latin style.

New!!: Theta Coronae Borealis and Latinisation of names · 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!!: Theta Coronae Borealis and Light-year · See more »

Main sequence

In astronomy, the main sequence is a continuous and distinctive band of stars that appear on plots of stellar color versus brightness.

New!!: Theta Coronae Borealis and Main sequence · See more »

Red giant

A red giant is a luminous giant star of low or intermediate mass (roughly 0.3–8 solar masses) in a late phase of stellar evolution.

New!!: Theta Coronae Borealis and Red giant · See more »

Shell star

A shell star is a star having a spectrum that exhibits features indicating a circumstellar disc of gas surrounding the star at the equator.

New!!: Theta Coronae Borealis and Shell star · See more »

Stellar classification

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

New!!: Theta Coronae Borealis and Stellar classification · See more »

Redirects here:

4 Coronae Borealis, Θ Coronae Borealis.

References

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

OutgoingIncoming
Hey! We are on Facebook now! »