Kepler 99 Facts
- Kepler 99's star type is star that can be located in the constellation of Cygnus. The description is based on the spectral class.
- Kepler 99 is not part of the constellation outline but is within the borders of the constellation.
- It is calculated at being 1.470 Billion Years old. This information comes from ExoPlanet.
- The star is calculated at being about 683.72 light years away from us.
Location of Kepler 99
The location of the 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 99, the location is 19 49 25 and 41 18 00 .
Radial Velocity and Proper Motion of Kepler 99
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 -3.22 miliarcseconds/year towards the north and 1.38 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 -23.00 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.
Additional Kepler 99 Facts and Figures
|Primary / Proper / Traditional Name||Kepler 99|
|Constellation's Main Star||No|
|Multiple Star System||No / Unknown|
|Age||1.47 Billion Years Old|
|Right Ascension (R.A.)||19 49 25|
|Declination (Dec.)||41 18 00|
|Distance from Earth||4.77 Parallax (milliarcseconds)|
| ||683.72 Light Years|
| ||209.63 Parsecs|
| ||43,238,990.04 Astronomical Units|
|Proper Motion Dec.||-3.22 milliarcseconds/year|
|Proper Motion RA.||1.38 milliarcseconds/year|
|Radial Velocity||-23.00 km/s|
Companions (Multi-Star and Exoplanets) Facts
Estimated Calculated Facts
|Radius (x the Sun)||0.73 |
|Mass Compared to the Sun||0.79 |
Sources and Links
List of Extrasolar Planets orbiting Kepler 99
|Name||Status||Mass (Jupiters)||Orbital Period (Days)||Eccentricity||Discovered||Semi-Major Axis||Periastron|
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