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

5 Lacertae

+ Save concept

5 Lacertae (5 Lac) is a spectroscopic binary in the constellation Lacerta. [1]

12 relations: Apparent magnitude, Astronomical unit, Binary star, Constellation, Hipparcos, Julian day, Lacerta, Radial velocity, Slow irregular variable, Spectral line, Stellar classification, Variable star designation.

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!!: 5 Lacertae 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!!: 5 Lacertae and Astronomical unit · See more »

Binary star

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

New!!: 5 Lacertae 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!!: 5 Lacertae and Constellation · See more »

Hipparcos

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

New!!: 5 Lacertae and Hipparcos · See more »

Julian day

Julian day is the continuous count of days since the beginning of the Julian Period and is used primarily by astronomers.

New!!: 5 Lacertae and Julian day · See more »

Lacerta

Lacerta is one of the 88 modern constellations defined by the International Astronomical Union.

New!!: 5 Lacertae and Lacerta · See more »

Radial velocity

The radial velocity of an object with respect to a given point is the rate of change of the distance between the object and the point.

New!!: 5 Lacertae and Radial velocity · See more »

Slow irregular variable

A slow irregular variable (ascribed the GCVS types L, LB and LC) is a variable star that exhibit no or very poorly defined periodicity in their slowly changing light emissions.

New!!: 5 Lacertae and Slow irregular variable · See more »

Spectral line

A spectral line is a dark or bright line in an otherwise uniform and continuous spectrum, resulting from emission or absorption of light in a narrow frequency range, compared with the nearby frequencies.

New!!: 5 Lacertae and Spectral line · See more »

Stellar classification

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

New!!: 5 Lacertae and Stellar classification · See more »

Variable star designation

Variable stars are designated using a variation on the Bayer designation format of an identifying label (as described below) combined with the Latin genitive of the name of the constellation in which the star lies.

New!!: 5 Lacertae and Variable star designation · See more »

Redirects here:

HD 213310, HD 213311, V412 Lacertae.

References

[1] https://en.wikipedia.org/wiki/5_Lacertae

OutgoingIncoming
Hey! We are on Facebook now! »