Universe Guide

Ross 245

Ross 245 Facts

  • Ross 245 is a star that can be located in the constellation of Andromeda. The description is based on the spectral class.
  • Ross 245 is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (K3 D ~) of the star, the star's colour is orange to red .
  • The star is calculated at being about 275.28 light years away from us. Distance

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 30.84000 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 Ross 245

Ross 245 Temperature and Colour

Based on the star's spectral type of K3 D ~ , Ross 245's colour and type is orange to red star. Based on the star's spectral, the stars temperature is between 3,700.00 and 5,200.00 degrees kelvin.

Distance to Ross 245

The Parallax of the star is given as 11.84860 which gives a calculated distance to Ross 245 of 275.28 light years from the Earth or 84.40 parsecs. It is about 1,618,267,992,729,984 miles from Earth.

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.

Travel Time to Ross 245

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 A380736250,825,197.87
Speed of Sound (Mach 1)767.269240,603,159.56
Concorde (Mach 2)1,534.54120,301,422.99
New Horizons Probe33,0005,594,161.99
Speed of Light670,616,629.00275.28

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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 Earth11.84860 Parallax (milliarcseconds)
 275.28 Light Years
 84.40 Parsecs
 17,408,628.34 Astronomical Units
Proper Motion Dec.-33.66700 milliarcseconds/year
Proper Motion RA.470.14500 milliarcseconds/year
Radial Velocity30.84000 km/s

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Estimated Calculated Facts

Calculated Temperature Range3,700.00 - 5,200.00

Sources and Links


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