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110 Herculis, HD173667, HIP92043, HR7061

110 Herculis is a blue to white main sequence dwarf star that can be located in the constellation of Hercules. The description is based on the spectral class. The star can be seen with the naked eye, that is, you don't need a telescope/binoculars to see it. The star has an estimated age of 2.40 Billion of Years but could be as young as 2.30 to 2.50 according to Hipparcos.

110 Herculis's Alternative Names

The Id of the star in the Yale Bright Star Catalogue is HR7061. HIP92043 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD173667. The Gliese ID of the star is GL 725.2. The star was part of the original catalogue devised by German Astronomer Wilheim Gliese of stars located within 20 parsecs of Earth. Star Names

Flamsteed designations are named after the creator, Sir John Flamsteed. Sir John numbered the stars in the constellation with a number and the latin name, this star's Flamsteed designation is 110 Herculis with it shortened to 110 Her.

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+20 3926.

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

Location of 110 Herculis

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 star is compared to the celestial equator and is expressed in degrees. For 110 Herculis, the location is 18h 45m 39.73 and +20° 32` 49.6 .

Proper Motion of 110 Herculis

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 -334.56 ± 0.15 miliarcseconds/year towards the north and -8.87 ± 0.25 miliarcseconds/year east if we saw them in the horizon. The Radial Velocity, that is the speed at which the star is moving away/towards us is 23.37000 km/s with an error of about 0.10 km/s .

110 Herculis Luminosity

Luminosity is the amount of energy that a star pumps out and its relative to the amount that our star, the Sun gives out. The figure of 6.68 that I have given is based on the value in the Simbad Hipparcos Extended Catalogue at the University of Strasbourg from 2012.

Physical Properties (Colour, Temperature, Age) of 110 Herculis

110 Herculis has a spectral type of F6V. This means the star is a blue to white main sequence dwarf star. The star is 7,388.00 Parsecs from the Galactic Centre or terms of Light Years is 24,096.95 s. The star has a B-V Colour Index of 0.48 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 6,369 Kelvin.

110 Herculis Radius has been calculated as being 2.12 times bigger than the Sun.The Sun's radius is 695,800km, therefore the star's radius is an estimated 1,476,447.27.km. If you need the diameter of the star, you just need to multiple the radius by 2. However with the 2007 release of updated Hipparcos files, the radius is now calculated at being round 2.14. The figure is derived at by using the formula from SDSS and has been known to produce widely incorrect figures. The star's Iron Abundance is -0.03 with an error value of 9.99 Fe/H with the Sun has a value of 1 to put it into context.

The stars age according to Hipparcos data files put the star at an age of about 2.40 Billion years old but could be between 2.30 and 2.50 Billion years old. In comparison, the Sun's age is about 4.6 Billion Years Old.

110 Herculis Apparent and Absolute Magnitudes

110 Herculis has an apparent magnitude of 4.19 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 2.79 If you used the 2007 Parallax value, you would get an absolute magnitude of 2.77. 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.

Distance to 110 Herculis

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 52.37 which gave the calculated distance to 110 Herculis as 62.28 light years away from Earth or 19.09 parsecs. It would take a spaceship travelling at the speed of light, 62.28 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

In 2007, Hipparcos data was revised with a new parallax of 52.06 which put 110 Herculis at a distance of 62.65 light years or 19.21 parsecs. It should not be taken as though the star is moving closer or further away from us. It is purely that the distance was recalculated.

The star's Galacto-Centric Distance is 7,388.00 Parsecs or 24,096.95 Light Years. The Galacto-Centric Distance is the distance from the star to the Centre of the Galaxy which is Sagittarius A*.

Source of Information

The source of the information if it has a Hip I.D. is from Simbad, the Hipparcos data library based at the University at Strasbourg, France. Hipparcos was a E.S.A. satellite operation launched in 1989 for four years. The items in red are values that I've calculated so they could well be wrong. Information regarding Metallicity and/or Mass is from the E.U. Exoplanets. The information was obtained as of 12th Feb 2017.

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110 Herculis Facts

Visual Facts


Primary / Proper / Traditional Name110 Herculis
Alternative NamesHD 173667, HIP 92043, HR 7061, 110 Her, BD+20 3926, Gliese 725.2
Spectral TypeF6V
Multiple Star SystemYes
Star Type main sequence Dwarf Star
Colour blue to white
GalaxyMilky Way
ConstellationHercules
Age2.40 Billion Years Old
Age Range2.30 - 2.50 Billion Years Old
Absolute Magnitude2.79 / 2.77
Visual / Apparent Magnitude4.19
Naked Eye VisibleYes - Magnitudes
Right Ascension (R.A.)18h 45m 39.73
Declination (Dec.)+20° 32` 49.6
Galactic Latitude10.43 degrees
Galactic Longitude50.79 degrees
1997 Distance from Earth52.37 Parallax (milliarcseconds)
 62.28 Light Years
 19.09 Parsecs
2007 Distance from Earth52.06 Parallax (milliarcseconds)
 62.65 Light Years
 19.21 Parsecs
Galacto-Centric Distance24,096.95 Light Years / 7,388.00 Parsecs
Proper Motion Dec.-334.56 ± 0.15 milliarcseconds/year
Proper Motion RA.-8.87 ± 0.25 milliarcseconds/year
B-V Index0.48
Radial Velocity23.37 ± 0.10 km/s
Iron Abundance-0.03 ± 9.99 Fe/H
Eccentricity0.31
Semi-Major Axis9020.00
Stellar Luminosity (Lsun)6.68

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Estimated Facts


Calculated Effective Temperature6,369 Kelvin

Sources and Links


SIMBAD SourceLink

Multi-Star System

The star has been identified as being a multi-star system, one in which there is at least one star in close orbit to another star or two or more stars orbiting a central point. The stars may be of equal mass, unequal mass where one star is stronger than the other or be in groups orbiting a central point which doesn't necessarily have to be a star. More information can be found on my dedicated multiple star systems page. The source of the info is Simbad. The file is dated 2000 so any differences between this and any other source will be down to the actual source from where the information came from.


Proper Motion mas/yr
H.D. IdB.D. IdStar CodeMagnitudeR.A.Dec.SpectrumColourYear
173667+20 3926.0A4.30000-11.00000-334.00000F5Yellow/White
B13.000001935
C11.000001935
P14.000001935
Q13.700001935

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