Universe Guide


HD 134060, HIP74273

HD 134060 is a white to yellow subgiant star that can be located in the constellation of Circinus. HD 134060 is the brightest star in Circinus based on the Hipparcos 2007 apparent magnitude. 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 7.50 Billion of Years but could be as young as 5.60 to 8.80 according to Hipparcos.

HIP74273 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD134060. HD 134060 has at least 2 Extrasolar Planets believed to be in orbit around the star.

Location of HD 134060

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 HD 134060, the location is 15h 10m 44.97 and -61d25`20.3 .

Proper Motion of HD 134060

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 -10.66 ± 0.32 miliarcseconds/year towards the north and -184.91 ± 0.45 miliarcseconds/year east if we saw them in the horizon.

Physical Properties (Colour, Temperature, Age, Radius) of HD 134060

HD 134060 has a spectral type of G3IV. This means the star is a white to yellow subgiant star. The star is 7382.00000000 Parsecs from the Galactic Centre or terms of Light Years is 24077.3780540800000000s. The star has a B-V Colour Index of 0.62 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 5,824 Kelvin.

HD 134060 Radius has been calculated as being 1.22 times bigger than the Sun.The Sun's radius is 695,800km, therefore the star's radius is an estimated 848,989.07.km. However with the 2007 release of updated Hipparcos files, the radius is now calculated at being round 1.23. 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 0.10 with an error value of 0.02 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 7.50 Billion years old but could be between 5.60 and 8.80 Billion years old. In comparison, the Sun's age is about 4.6 Billion Years Old.

HD 134060 Apparent and Absolute Magnitudes

HD 134060 has an apparent magnitude of 6.29 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 4.38 If you used the 2007 Parallax value, you would get an absolute magnitude of 4.37. 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 HD 134060

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 41.41 which gave the calculated distance to HD 134060 as 78.76 light years away from Earth or 24.15 parsecs. It would take a spaceship travelling at the speed of light, 78.76 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 41.32 which put HD 134060 at a distance of 78.94 light years or 24.20 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 7,382.00 Parsecs or 24,077.38 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.

HD 134060 Facts

Alternative Names

Traditional/Proper NameHD 134060
Hipparcos Library I.D.74273
Henry Draper Designation134060

Visual Facts

Star Typesubgiant star
Age7.50 Billion Years Old
Age Range5.60 - 8.80 Billion Years Old
Absolute Magnitude4.38 / 4.37
Visual / Apparent Magnitude6.29
Naked Eye VisibleYes - Magnitudes
Right Ascension (R.A.)15h 10m 44.97
Declination (Dec.)-61d25`20.3
Galactic Latitude-2.92 degrees
Galactic Longitude318.81 degrees
1997 Distance from Earth41.41 Parallax (milliarcseconds)
 78.76 Light Years
 24.15 Parsecs
2007 Revised Distance from Earth41.32 Parallax (milliarcseconds)
 78.94 Light Years
 24.20 Parsecs
Galacto-Centric Distance24,077.38 Light Years / 7,382.00 Parsecs
Proper Motion Dec.-10.66 ± 0.32 milliarcseconds/year
Proper Motion RA.-184.91 ± 0.45 milliarcseconds/year
B-V Index0.62
Radial Velocity43.50 ± 0.74 km/s
Iron Abundance0.10 ± 0.02 Fe/H
Spectral TypeG3IV
Colour(G) White to Yellow

Companions (Multi-Star and Exoplanets) Facts

Exoplanet Count2

Estimated Facts

Calculated Effective Temperature5,824 Kelvin

Sources and Links

SIMBAD SourceLink

Related Stars

List of Extrasolar Planets orbiting HD 134060

NameStatusMass (Jupiters)Orbital Period (Days)EccentricityDiscoveredSemi-Major AxisPeriastron
Hd 134060 BConfirmed0.03513.2700.420110.0444
Hd 134060 CConfirmed0.15071160.9000.7520112.2263

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