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HIP 251, HD225070

Primary Facts on HIP 251

  • HIP 251's star type is giant star that can be located in the constellation of Sculptor. The description is based on the spectral class.
  • HIP 251 is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (K2III) of the star, the star's colour is orange to red .
  • The star can not be seen by the naked eye, you need a telescope to see it.
  • The star is calculated at being about -6154.03 light years away from us.

HIP 251's Alternative Names

HIP251 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD225070.

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

Location of HIP 251

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 HIP 251, the location is 00h 03m 06.10 and -25° 15` 39.8 .

Physical Properties (Colour, Temperature) of HIP 251

HIP 251 has a spectral type of K2III. This means the star is a orange to red giant star. The star has a B-V Colour Index of 1.34 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 4,257 Kelvin.

HIP 251 Apparent and Absolute Magnitudes

HIP 251 has an apparent magnitude of 8.65 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 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 HIP 251

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as -0.53 which gave the calculated distance to HIP 251 as -6154.03 light years away from Earth or -1886.79 parsecs. It would take a spaceship travelling at the speed of light, -6154.03 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

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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Additional HIP 251 Facts and Figures

Visual Facts


Primary / Proper / Traditional NameHIP 251
Alternative NamesHD 225070, HIP 251
Spectral TypeK2III
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeGiant Star
Colour orange to red
GalaxyMilky Way
ConstellationSculptor
Visual / Apparent Magnitude8.65
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)00h 03m 06.10
Declination (Dec.)-25° 15` 39.8
Galactic Latitude-79.00 degrees
Galactic Longitude39.99 degrees
Distance from Earth-0.53 Parallax (milliarcseconds)
 -6154.03 Light Years
 -1886.79 Parsecs
 -389,175,661.97 Astronomical Units
B-V Index1.34

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Estimated Facts


Calculated Effective Temperature4,257 Kelvin

Sources and Links


SIMBAD SourceLink

Related Stars


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