Universe Guide


K2-3 Facts

  • K2-3 is a main sequence star that can be located in the constellation of Leo. The description is based on the spectral class.
  • K2-3 is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (M0.0V D) of the star, the star's colour is red .
  • The star is calculated at being about 143.93 light years away from us. Distance

K2-3's Alternative Names

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

Location of K2-3

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 K2-3, the location is 11 29 20.3917940095 and -01 27 17.279810476 .

Radial Velocity and Proper Motion of K2-3

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 -78.14 milliarcseconds/year towards the north and 94.03 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 30.76000 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 of K2-3

K2-3 Colour and Temperature

Based on the star's spectral type of M0.0V D , K2-3's colour and type is red main sequence star. Based on the star's spectral, the stars temperature is between 2,400.00 and 3,700.00 degrees kelvin.

Distance to K2-3

The Parallax of the star is given as 22.66100 which gives a calculated distance to K2-3 of 143.93 light years from the Earth or 44.13 parsecs. It is about 846,110,549,962,317 miles from Earth.

The star is roughly 9,102,402.47 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 K2-3

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)
Airbus A380736131,143,819.85
Speed of Sound (Mach 1)767.269125,799,232.62
Concorde (Mach 2)1,534.5462,899,534.33
New Horizons Probe 33,0002,924,904.59
Speed of Light670,616,629.00143.93

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Additional K2-3 Facts and Figures

Visual Facts

Primary / Proper / Traditional NameK2-3
Alternative Names,
Spectral TypeM0.0V D
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star Type Main Sequence Dwarf Star
GalaxyMilky Way
Right Ascension (R.A.)11 29 20.3917940095
Declination (Dec.)-01 27 17.279810476
Distance from Earth22.66100 Parallax (milliarcseconds)
 143.93 Light Years
 44.13 Parsecs
 9,102,402.47 Astronomical Units
Proper Motion Dec.-78.13900 milliarcseconds/year
Proper Motion RA.94.03400 milliarcseconds/year
Radial Velocity30.76000 km/s

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Estimated Calculated Facts

Calculated Temperature Range2,400.00 - 3,700.00

Sources and Links


Related Stars

Comments and Questions

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