Universe Guide

HD 20364

HD 20364 Facts

  • HD 20364 is a star that can be located in the constellation of Perseus. The description is based on the spectral class.
  • HD 20364 is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (B/A D) of the star, the star's colour is blue .
  • The star is calculated at being about 1320.07 light years away from us. Distance

HD 20364's Alternative Names

The Id of the star in the Henry Draper catalogue is HD20364.

BD number is the number that the star was filed under in the Durchmusterung or Bonner Durchmusterung, a star catalogue that was put together by the Bonn Observatory between 1859 to 1903. The star's BD Number is BD+54 664.

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

Location of HD 20364

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 20364, the location is 03 18 58.5078831404 and +55 23 51.864934918 .

Proper Motion of HD 20364

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 -5.67 milliarcseconds/year towards the north and -6.72 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 20364

HD 20364 Temperature and Colour

Based on the star's spectral type of B/A D , HD 20364's colour and type is blue star. Based on the star's spectral, the stars temperature is between 10,000.00 and 30,000.00 degrees kelvin.

Distance to HD 20364

The Parallax of the star is given as 2.47080 which gives a calculated distance to HD 20364 of 1320.07 light years from the Earth or 404.73 parsecs. It is about 7,760,196,996,378,488 miles from Earth.

The star is roughly 83,480,973.33 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 20364

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 A3807361,202,800,126.96
Speed of Sound (Mach 1)767.2691,153,781,650.82
Concorde (Mach 2)1,534.54576,890,073.54
New Horizons Probe 33,00026,826,087.68
Speed of Light670,616,629.001,320.07

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Additional HD 20364 Facts and Figures

Visual Facts

Primary / Proper / Traditional NameHD 20364
Alternative NamesHD 20364, BD+54 664
Spectral TypeB/A D
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeStar
GalaxyMilky Way
Right Ascension (R.A.)03 18 58.5078831404
Declination (Dec.)+55 23 51.864934918
Distance from Earth2.47080 Parallax (milliarcseconds)
 1320.07 Light Years
 404.73 Parsecs
 83,480,973.33 Astronomical Units
Proper Motion Dec.-5.66700 milliarcseconds/year
Proper Motion RA.-6.72000 milliarcseconds/year

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Estimated Calculated Facts

Calculated Temperature Range10,000.00 - 30,000.00

Sources and Links


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