Universe Guide

HD 203651

HD 203651 Facts

  • HD 203651 is a main sequence star that can be located in the constellation of Capricornus. The description is based on the spectral class.
  • HD 203651 is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (A5V C) of the star, the star's colour is blue - white .
  • The star is calculated at being about 573.62 light years away from us. Distance

HD 203651's Alternative Names

The Id of the star in the Henry Draper catalogue is HD203651.

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

Location of HD 203651

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 HD 203651, the location is 21 24 15.0270537818 and -23 38 01.843019425 .

Proper Motion of HD 203651

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 -1.73 milliarcseconds/year towards the north and 0.57 milliarcseconds/year east if we saw them in the horizon. . 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 203651

HD 203651 Colour and Temperature

Based on the star's spectral type of A5V C , HD 203651's colour and type is blue - white main sequence star. Based on the star's spectral, the stars temperature is between 7,500.00 and 10,000.00 degrees kelvin.

Distance to HD 203651

The Parallax of the star is given as 5.68610 which gives a calculated distance to HD 203651 of 573.62 light years from the Earth or 175.87 parsecs. It is about 3,372,097,086,565,582 miles from Earth.

The star is roughly 36,275,538.70 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 203651

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 A380736522,661,835.23
Speed of Sound (Mach 1)767.269501,361,466.09
Concorde (Mach 2)1,534.54250,680,406.33
New Horizons Probe33,00011,656,942.75
Speed of Light670,616,629.00573.62

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Additional HD 203651 Facts and Figures

Visual Facts

Primary / Proper / Traditional NameHD 203651
Alternative NamesHD 203651
Spectral TypeA5V C
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star Type Main Sequence Dwarf Star
GalaxyMilky Way
Right Ascension (R.A.)21 24 15.0270537818
Declination (Dec.)-23 38 01.843019425
Distance from Earth5.68610 Parallax (milliarcseconds)
 573.62 Light Years
 175.87 Parsecs
 36,275,538.70 Astronomical Units
Proper Motion Dec.-1.72900 milliarcseconds/year
Proper Motion RA.0.57400 milliarcseconds/year

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Estimated Calculated Facts

Calculated Temperature Range7,500.00 - 10,000.00

Sources and Links


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