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Ross 245

Ross 245 Facts

Location of Ross 245

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 Ross 245, the location is 23 27 42.9760157047 and +49 14 44.606801308 .

Radial Velocity and Proper Motion of Ross 245

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 -33.67 milliarcseconds/year towards the north and 470.15 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 30.84 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 Ross 245

Ross 245 Colour and Temperature

Ross 245 has a spectral type of K3 D ~. This means the star is a orange to red star.

Distance to Ross 245

The Parallax of the star is given as 11.85 which gives a calculated distance to Ross 245 of 275.28 light years from the Earth or 84.40 parsecs. It would take a spaceship travelling at the speed of light, 275.28 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

The star is roughly 17,408,628.34 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.

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Additional Ross 245 Facts and Figures

Visual Facts

Primary / Proper / Traditional NameRoss 245
Spectral TypeK3 D ~
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeStar
ColourOrange to Red
GalaxyMilky Way
Right Ascension (R.A.)23 27 42.9760157047
Declination (Dec.)+49 14 44.606801308
Distance from Earth11.85 Parallax (milliarcseconds)
 275.28 Light Years
 84.40 Parsecs
 17,408,628.34 Astronomical Units
Proper Motion Dec.-33.67 milliarcseconds/year
Proper Motion RA.470.15 milliarcseconds/year
Radial Velocity30.84 km/s

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Sources and Links


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