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HATS-8

HATS-8 Facts

Location of HATS-8

The location of the main sequence 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 HATS-8, the location is 19h 39m 46.00 and -25° 44` 54.00 .

Physical Properties (Colour, Metallicity, Age, Radius) of HATS-8

HATS-8 Colour and Temperature

HATS-8 has a spectral type of G2V. This means the star is a white to yellow main sequence star.

HATS-8 Radius

HATS-8 has been calculated as 1.09 times bigger than the Sun. The Sun's radius is 695,800km, therefore the star's radius is an estimated 755,638.80.km. If you need the diameter of the star, you just need to multiple the radius by 2.

The star's metallicity is 0.080000, this value is the fractional amount of the star that is not Hydrogen (X) or Helium (Y). An older star would have a high metallicity whereas a new star would have a lower one.

The star is believed to be about 5.10 Billion years old. To put in context, the Sun is believed to be about five billion years old and the Universe is about 13.8 billion years old.

HATS-8 Apparent and Absolute Magnitudes

HATS-8 has an apparent magnitude of 14.03 which is how bright we see the star from Earth. Apparent Magnitude is also known as Visual Magnitude. Using the supplied Parallax value, you would get an absolute magnitude of 4.44 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 HATS-8

The Parallax of the star is given as 1.21 which gives a calculated distance to HATS-8 of 2703.83 light years from the Earth or 828.98 parsecs. It would take a spaceship travelling at the speed of light, 2703.83 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

The star is roughly 170,988,207.62 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 HATS-8 Facts and Figures

Visual Facts


Primary / Proper / Traditional NameHATS-8
Spectral TypeG2V
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star Type Main Sequence Dwarf Star
ColourWhite to Yellow
GalaxyMilky Way
ConstellationSagittarius
Age5.10 Billion Years Old
Metalicity0.0800
Visual / Apparent Magnitude14.03
Naked Eye VisibleRequires 8m Telescope - Magnitudes
Right Ascension (R.A.)19h 39m 46.00
Declination (Dec.)-25° 44` 54.00
Distance from Earth1.21 Parallax (milliarcseconds)
 2703.83 Light Years
 828.98 Parsecs
 170,988,207.62 Astronomical Units

Companions (Multi-Star and Exoplanets) Facts


Exoplanet Count1

Estimated Calculated Facts


Radius (x the Sun)1.09

Sources and Links


Sourcehttp://www.exoplanets.eu

List of Extrasolar Planets orbiting HATS-8


NameStatusMass (Jupiters)Orbital Period (Days)EccentricityDiscoveredSemi-Major AxisPeriastronInclination
HATS-8 bConfirmed0.01913.5840.3820150.0466787.800

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