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ZZ Aurigae

ZZ Aurigae Facts

Location of ZZ Aurigae

The location of the star in the night sky is determined by the Right Ascension (R.A.) and Declination (Dec.), these are equivalent to the Longitude and Latitude on the Earth. The Right Ascension is how far expressed in time (hh:mm:ss) the star is along the celestial equator. If the R.A. is positive then its eastwards. The Declination is how far north or south the object is compared to the celestial equator and is expressed in degrees. For ZZ Aurigae, the location is 05 45 42.1567449831 and +41 08 59.227792035 .

Proper Motion of ZZ Aurigae

All stars like planets orbit round a central spot, in the case of planets, its the central star such as the Sun. In the case of a star, its the galactic centre. The constellations that we see today will be different than they were 50,000 years ago or 50,000 years from now. Proper Motion details the movements of these stars and are measured in milliarcseconds. The star is moving -12.81 milliarcseconds/year towards the north and 2.91 milliarcseconds/year east if we saw them in the horizon. . When the value is negative then the star and the Sun are getting closer to one another, likewise, a positive number means that two stars are moving away. Its nothing to fear as the stars are so far apart, they won't collide in our life-time, if ever.

Physical Properties (Colour) of ZZ Aurigae

ZZ Aurigae Colour and Temperature

ZZ Aurigae has a spectral type of A7 D~. This means the star is a blue - white star.

Distance to ZZ Aurigae

The Parallax of the star is given as 2.55 which gives a calculated distance to ZZ Aurigae of 1280.08 light years from the Earth or 392.46 parsecs. It would take a spaceship travelling at the speed of light, 1280.08 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

The star is roughly 80,950,121.79 Astronomical Units from the Earth/Sun give or take a few. An Astronomical Unit is the distance between Earth and the Sun. The number of A.U. is the number of times that the star is from the Earth compared to the Sun.

Variable Type of ZZ Aurigae

The star is a eclipsing binary sys Beta Lyrae (Sheliak) variable type which means that its size changes over time. The Variable Type is usually named after the first star of that type to be spotted.

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Additional ZZ Aurigae Facts and Figures

Visual Facts


Primary / Proper / Traditional NameZZ Aurigae
Spectral TypeA7 D~
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeStar
ColourBlue
GalaxyMilky Way
ConstellationAuriga
Right Ascension (R.A.)05 45 42.1567449831
Declination (Dec.)+41 08 59.227792035
Distance from Earth2.55 Parallax (milliarcseconds)
 1280.08 Light Years
 392.46 Parsecs
 80,950,121.79 Astronomical Units
Proper Motion Dec.-12.81 milliarcseconds/year
Proper Motion RA.2.91 milliarcseconds/year

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Variable Star Details


Variable Star ClassEclipsing binary sys
Variable Star TypeBeta Lyrae (Sheliak)

Sources and Links


Sourcehttp://simbad.u-strasbg.fr/simbad/sim-id?Ident=zz%20aur

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