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LP 415-17 (High Proper Motion Star) Facts

LP 415-17 Facts

Location of LP 415-17

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 LP 415-17, the location is 04 21 52.4847989858 and +21 21 12.937622502 .

Radial Velocity and Proper Motion of LP 415-17

Proper Motion

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 -76.76 milliarcseconds/year towards the north and 200.61 milliarcseconds/year east if we saw them in the horizon.

Radial Velocity

The Radial Velocity, that is the speed at which the star is moving away/towards the Sun is 19.55 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.

Physical Properties (Colour) of LP 415-17

LP 415-17 Colour and Temperature

LP 415-17 has a spectral type of K6V C. This means the star is a orange to red main sequence star.

Distance to LP 415-17

The Parallax of the star is given as 13.71 which gives a calculated distance to LP 415-17 of 237.94 light years from the Earth or 72.95 parsecs. It is about 159,566,520,704 miles from Earth.

The star is roughly 15,046,912.77 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 LP 415-17

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)
Walking439,891,630,176.07
Car1201,329,721,005.87
Airbus A380736216,802,337.91
Speed of Sound (Mach 1)767.269207,966,854.79
Concorde (Mach 2)1,534.54103,983,291.87
New Horizons Probe33,0004,835,349.11
Speed of Light670,616,629.00237.94

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Additional LP 415-17 Facts and Figures

Visual Facts


Primary / Proper / Traditional NameLP 415-17
Spectral TypeK6V C
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star Type Main Sequence Dwarf Star
ColourOrange to Red
GalaxyMilky Way
ConstellationTaurus
Right Ascension (R.A.)04 21 52.4847989858
Declination (Dec.)+21 21 12.937622502
Distance from Earth13.71 Parallax (milliarcseconds)
 237.94 Light Years
 72.95 Parsecs
 15,046,912.77 Astronomical Units
Proper Motion Dec.-76.76 milliarcseconds/year
Proper Motion RA.200.61 milliarcseconds/year
Radial Velocity19.55 km/s

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Sources and Links


Sourcehttp://simbad.u-strasbg.fr/simbad/sim-id?Ident=LP%20415-17

List of Extrasolar Planets orbiting LP 415-17


NameStatusMass (Jupiters)Orbital Period (Days)EccentricityDiscoveredSemi-Major AxisPeriastronInclination
LP 415-17 bConfirmed0.00096.34220180.056288.300
LP 415-17 cConfirmed0.001613.85020180.094688.960
LP 415-17 dConfirmed0.001940.71820180.193789.610

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