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HD 287399 (Carbon Star) Facts

HD 287399 Facts

  • HD 287399 is a star that can be located in the constellation of Cancer. The description is based on the spectral class.
  • HD 287399 is not part of the constellation outline but is within the borders of the constellation.
  • The star is calculated at being about 1616.75 light years away from us. Distance

HD 287399's Alternative Names

The Id of the star in the Henry Draper catalogue is HD287399.

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

Location of HD 287399

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 HD 287399, the location is 04 59 47.6854568584 and +12 08 12.989339822 .

Radial Velocity and Proper Motion of HD 287399

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 7.17 milliarcseconds/year towards the north and -6.33 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 -20.39000 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 HD 287399

HD 287399 Colour

Based on the star's spectral type of N D

Distance to HD 287399

The Parallax of the star is given as 2.01740 which gives a calculated distance to HD 287399 of 1616.75 light years from the Earth or 495.69 parsecs. It is about 9,504,267,572,094,601 miles from Earth.

The star is roughly 102,242,689.37 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 HD 287399

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)
Walking4271,054,858,733.94
Car1209,035,161,957.80
Airbus A3807361,473,124,232.25
Speed of Sound (Mach 1)767.2691,413,089,066.46
Concorde (Mach 2)1,534.54706,543,612.38
New Horizons Probe33,00032,855,134.39
Speed of Light670,616,629.001,616.75

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Additional HD 287399 Facts and Figures

Visual Facts


Primary / Proper / Traditional NameHD 287399
Alternative NamesHD 287399
Spectral TypeN D
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeStar
GalaxyMilky Way
ConstellationCancer
Right Ascension (R.A.)04 59 47.6854568584
Declination (Dec.)+12 08 12.989339822
Distance from Earth2.01740 Parallax (milliarcseconds)
 1616.75 Light Years
 495.69 Parsecs
 102,242,689.37 Astronomical Units
Proper Motion Dec.7.16800 milliarcseconds/year
Proper Motion RA.-6.33100 milliarcseconds/year
Radial Velocity-20.39000 km/s

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Sources and Links


Sourcehttp://simbad.u-strasbg.fr/simbad/sim-id?Ident=hd%20287399

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Comments and Questions

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