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HD 219666 (High Proper Motion Star) Facts

HD 219666 Facts

HD 219666's Alternative Names

The Id of the star in the Henry Draper catalogue is HD219666.

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

Location of HD 219666

The location of the main sequence 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 HD 219666, the location is 23 18 13.6298974951 and -56 54 14.035856510 .

Proper Motion of HD 219666

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 -20.18 milliarcseconds/year towards the north and 313.92 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 HD 219666

HD 219666 Colour and Temperature

HD 219666 has a spectral type of G5V C. This means the star is a yellow main sequence star.

Distance to HD 219666

The Parallax of the star is given as 10.59 which gives a calculated distance to HD 219666 of 307.99 light years from the Earth or 94.43 parsecs. It is about 206,543,215,566 miles from Earth.

The star is roughly 19,477,449.93 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.

Travel Time to HD 219666

The time it will take to travel to this star is dependent on how fast you are going. U.G. has done some calculations as to how long it will take going at differing speeds. A note about the calculations, when I'm talking about years, I'm talking non-leap years only (365 days).

The New Horizons space probe is the fastest probe that we've sent into space at the time of writing. Its primary mission was to visit Pluto which at the time of launch (2006), Pluto was still a planet.

DescriptionSpeed (m.p.h.)Time (years)
Walking451,635,803,891.43
Car1201,721,193,463.05
Airbus A380736280,629,368.98
Speed of Sound (Mach 1)767.269269,192,702.38
Concorde (Mach 2)1,534.54134,596,175.77
New Horizons Probe33,0006,258,885.32
Speed of Light670,616,629.00307.99

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Additional HD 219666 Facts and Figures

Visual Facts


Primary / Proper / Traditional NameHD 219666
Alternative NamesHD 219666
Spectral TypeG5V C
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star Type Main Sequence Dwarf Star
ColourYellow
GalaxyMilky Way
ConstellationTucana
Right Ascension (R.A.)23 18 13.6298974951
Declination (Dec.)-56 54 14.035856510
Distance from Earth10.59 Parallax (milliarcseconds)
 307.99 Light Years
 94.43 Parsecs
 19,477,449.93 Astronomical Units
Proper Motion Dec.-20.18 milliarcseconds/year
Proper Motion RA.313.92 milliarcseconds/year

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Sources and Links


Sourcehttp://simbad.u-strasbg.fr/simbad/sim-id?Ident=HD%20219666

List of Extrasolar Planets orbiting HD 219666


NameStatusMass (Jupiters)Orbital Period (Days)EccentricityDiscoveredSemi-Major AxisPeriastronInclination
HD 219666 bConfirmed0.00416.0360.020180.0635686.380

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Comments and Questions

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