HDE 226868 is a blue very luminous supergiant star that can be located in the constellation of Cygnus. The star can not be seen by the naked eye, you need a telescope to see it.
The location of the star in the galaxy 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 star is compared to the celestial equator and is expressed in degrees. For HDE 226868, the location is 19h 58m 21 and 35d 12` 05.77 .
HDE 226868 has a spectral type of O9.7Iab. This means the star is a blue supergiant star. HDE 226868 lies at a distance of 6,100.00 light years away from our Sun and our planet Earth or to put it another way, 1,870.23 parsecs away from the Sun.
HDE 226868 has been calculated as 20.00 times bigger than the Sun.The Sun's radius is 695,800km, therefore the star's radius is an estimated 13,916,000.00.km.
HDE 226868 has an apparent magnitude of 8.95 which is how bright we see the star from Earth. Apparent Magnitude is also known as Visual Magnitude. Magnitude, whether it be apparent/visual or absolute magnitude is measured by a number, the smaller the number, the brighter the Star is. Our own Sun is the brightest star and therefore has the lowest of all magnitudes, -26.74. A faint star will have a high number.
HDE 226868 is an estimated 6,100.00 light years from our Solar System (Earth and Sun). It would take a spaceship 6,100.00 years travelling at the speed of light to get there. We don't have a space ship that can travel that distance or at that speed yet.
|Traditional/Proper Name||HDE 226868|
|Star Type||supergiant star|
|Visual / Apparent Magnitude||8.95|
|Naked Eye Visible||Requires a 7x50 Binoculars - Ref: Wiki|
|Right Ascension (R.A.)||19h 58m 21|
|Declination (Dec.)||35d 12` 05.77|
|Distance from the Sun / Earth||6,100.00 Light Years|
|Radius (x the Sun)||20.00|