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Mu01 Cygni

Primary Facts on Mu01 Cygni

Mu01 Cygni's Alternative Names

The Id of the star in the Yale Bright Star Catalogue is HR8309. The Id of the star in the Henry Draper catalogue is HD206826.

More details on objects' alternative names can be found at Star Names .

Location of Mu01 Cygni

The location of the multiple star system 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 Mu01 Cygni, the location is 21 44 08.589 and +28 44 33.38 .

Radial Velocity and Proper Motion of Mu01 Cygni

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 -251.10 miliarcseconds/year towards the north and 277.40 miliarcseconds/year east if we saw them in the horizon.

The Radial Velocity, that is the speed at which the star is moving away/towards the Sun is 18.00 km/s . 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.

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Additional Mu01 Cygni Facts and Figures

Visual Facts


Primary / Proper / Traditional NameMu01 Cygni
Alternative NamesHD 206826, HR 8309
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeMultiple Star System
GalaxyMilky Way
ConstellationCygnus
Right Ascension (R.A.)21 44 08.589
Declination (Dec.)+28 44 33.38
Distance from Earth42.10 Parallax (milliarcseconds)
 77.47 Light Years
 23.75 Parsecs
 4,898,755.01 Astronomical Units
Proper Motion Dec.-251.10 milliarcseconds/year
Proper Motion RA.277.40 milliarcseconds/year
Radial Velocity18.00 km/s
Associated / Clustered StarsMu02 Cygni

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Sources and Links


Sourcehttp://simbad.u-strasbg.fr/simbad/sim-id?Ident=%401507612&Name=*%20mu.01%20Cyg&submit=submit

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