Universe Guide

Kepler-1 (Variable Star) Facts

Kepler-1 Facts

  • Kepler-1 is a main sequence star that can be located in the constellation of Draco. The description is based on the spectral class.
  • Kepler-1 is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (G0V+K4.5-6 C) of the star, the star's colour is yellow .
  • It is calculated at being 5.100 Billion Years old. This information comes from ExoPlanet.
  • Kepler-1 has a radius that is 1.00 times bigger than the Suns. Radius
  • The star is calculated at being about 706.68 light years away from us. Distance

Kepler-1's Alternative Names

Kepler-1 has alternative name(s) :- KOI-1.

The Kepler name comes from the fact that the star was examined as part of the N.A.S.A. Kepler Space Telescope. The telescope operated between March 2009 and October 2018 studying a small section of space for exoplanets around the constellations of Cygnus, Draco and Lyra. After the telescope project came to an end, studies continued with T.E.S.S. space telescope which examined the majority of space for planets.

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

Location of Kepler-1

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 Kepler-1, the location is 19 07 14.0379171930 and +49 18 59.090895318 .

Radial Velocity and Proper Motion of Kepler-1

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 1.62 milliarcseconds/year towards the north and 5.22 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 -0.73000 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 Kepler-1

Kepler-1 Temperature and Colour

Based on the star's spectral type of G0V+K4.5-6 C , Kepler-1's colour and type is yellow main sequence star. Based on the star's spectral, the stars temperature is between 5,200.00 and 6,000.00 degrees kelvin.

Kepler-1 Radius

Kepler-1 Radius has been calculated as being 1.00 times bigger than the Sun. The Sun's radius is 695,800km, therefore the star's radius is an estimated 695,800.00.km. If you need the diameter of the star, you just need to multiple the radius by 2.

Kepler-1 Mass

The Kepler-1's solar mass is 0.98 times that of our star, the Sun. The Sun's Mass is 1,989,100,000,000,000,000,000 billion kg. which to calculate using this website is too large. To give idea of size, the Sun is 99.86% the mass of the solar system.

Kepler-1 Estimated Age

The star is believed to be about 5.10 Billion years old. To put in context, the Sun is believed to be about five billion years old and the Universe is about 13.8 billion years old.

Distance to Kepler-1

The Parallax of the star is given as 4.61540 which gives a calculated distance to Kepler-1 of 706.68 light years from the Earth or 216.67 parsecs. It is about 4,154,306,978,721,394 miles from Earth.

The star is roughly 44,691,084.16 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 Kepler-1

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 A380736643,901,303.51
Speed of Sound (Mach 1)767.269617,659,985.46
Concorde (Mach 2)1,534.54308,829,590.22
New Horizons Probe33,00014,360,950.28
Speed of Light670,616,629.00706.68

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Additional Kepler-1 Facts and Figures

Visual Facts

Primary / Proper / Traditional NameKepler-1
Alternative NamesKOI-1
Spectral TypeG0V+K4.5-6 C
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star Type Main Sequence Dwarf Star
GalaxyMilky Way
Age5.10 Billion Years Old
Right Ascension (R.A.)19 07 14.0379171930
Declination (Dec.)+49 18 59.090895318
Distance from Earth4.61540 Parallax (milliarcseconds)
 706.68 Light Years
 216.67 Parsecs
 44,691,084.16 Astronomical Units
Proper Motion Dec.1.61900 milliarcseconds/year
Proper Motion RA.5.21900 milliarcseconds/year
Radial Velocity-0.73000 km/s

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Estimated Calculated Facts

Radius (x the Sun)1.00
Calculated Temperature Range5,200.00 - 6,000.00
Mass Compared to the Sun0.98

Sources and Links


List of Extrasolar Planets orbiting Kepler-1

NameStatusMass (Jupiters)Orbital Period (Days)EccentricityDiscoveredSemi-Major AxisPeriastronInclination
Kepler-1 bConfirmed1.2530200683.908

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