111 Herculis is a blue giant star that can be located in the constellation of Hercules. HIP92161 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD173880. 111 Herculis has alternative name(s), 111 Herculis , 111 Her.
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 111 Herculis, the location is 18h 47m 01.22 and +18 d 10 ` 52.4 .
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 119.00 ± 000.00 towards the north and 084.00 ± 000.00 east if we saw them in the horizon.
111 Herculis has a spectral type of A5III. This means the star is a blue coloured giant star. The star has a B-V Colour Index of 0.14 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 8,153 Kelvin.
111 Herculis has been calculated as 1.81 times bigger than the Sun.The Sun's radius is 695,800km, therefore the star's radius is an estimated 1,261,051.20.km.
111 Herculis has an apparent magnitude of 4.34 which is how bright we see the star from Earth. Apparent Magnitude is also known as Visual Magnitude. If you used the 1997 Parallax value, you would get an absolute magnitude of 2.06 If you used the 2007 Parallax value, you would get an absolute magnitude of 2.06. 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.
Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 35.00 which gave the calculated distance to 111 Herculis as 93.19 light years away from Earth or 28.57 parsecs. In 2007, Hipparcos data was revised with a new parallax of 35.00 which put 111 Herculis at a distance of 93.19 light years or 28.57 parsecs.
It would take a spaceship travelling at the speed of light, 93.19 years using the 1997 distance to get there. We don't have the technology or spaceship that can carry people over that distance yet.
|Traditional Name||111 Herculis|
|Short Name||111 Her|
|Alternative Name(s)||111 Herculis|
|Hipparcos Library I.D.||92161|
|Bonner Durchmusterung||BD+18 3823|
|Henry Draper Designation||173880|
|Absolute Magnitude||2.06 / 2.06|
|Right Ascension (R.A.)||18h 47m 01.22|
|Declination (Dec.)||+18 d 10 ` 52.4|
|1997 Distance from Earth||35.00 Parallax (milliarcseconds)|
|93.19 Light Years|
|2007 Distance from Earth||35.00 Parallax (milliarcseconds)|
|93.19 Light Years|
|Proper Motion Dec.||119.00 ± 0.00 milliarcseconds/year|
|Proper Motion RA.||84.00 ± 0.00 milliarcseconds/year|
|Star Type||giant star|
|Radius (x the Sun)||1.81|
|Calculated Effective Temperature||8,153 Kelvin|