Universe Guide

FU Orionis (FU Orionis Star) Facts

FU Orionis Facts

FU Orionis's Alternative Names

FU Orionis has alternative name(s) :- Fu Ori.

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

Location of FU Orionis

The location of the FU Orionis 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 FU Orionis, the location is 05h 45m 22.3650 and +09° 04` 12.288 .

Proper Motion of FU Orionis

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 -2.26 milliarcseconds/year towards the north and 2.29 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 (Colour) of FU Orionis

FU Orionis Colour and Temperature

FU Orionis has a spectral type of F0Iab C. This means the star is a yellow to white FU Orionis star.

Distance to FU Orionis

The Parallax of the star is given as 2.83 which gives a calculated distance to FU Orionis of 1152.52 light years from the Earth or 353.36 parsecs. It would take a spaceship travelling at the speed of light, 1152.52 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

The star is roughly 72,885,224.06 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 FU Orionis Facts and Figures

Visual Facts

Primary / Proper / Traditional NameFU Orionis
Alternative NamesFu Ori
Spectral TypeF0Iab C
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeFU Orionis
ColourYellow - White
GalaxyMilky Way
Right Ascension (R.A.)05h 45m 22.3650
Declination (Dec.)+09° 04` 12.288
Distance from Earth2.83 Parallax (milliarcseconds)
 1152.52 Light Years
 353.36 Parsecs
 72,885,224.06 Astronomical Units
Proper Motion Dec.-2.26 milliarcseconds/year
Proper Motion RA.2.29 milliarcseconds/year

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Location of FU Orionis in Orion

FU Orionis Location in Orion

The map was generated using Night Vision, an awesome free application by Brian Simpson.

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