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HIP 25103, HD242908

Primary Facts on HIP 25103

  • HIP 25103's star type is star that can be located in the constellation of Auriga. The description is based on the spectral class.
  • HIP 25103 is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (O5) of the star, the star's colour is blue .
  • The star can not be seen by the naked eye, you need a telescope to see it.
  • The star is calculated at being about -12544.74 light years away from us.

HIP 25103's Alternative Names

HIP25103 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD242908.

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+33 1023.

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

Location of HIP 25103

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 25103, the location is 05h 22m 29.30 and +33° 30` 50.5 .

Physical Properties (Colour, Temperature) of HIP 25103

HIP 25103 has a spectral type of O5. This means the star is a blue star. The star has a B-V Colour Index of 0.29 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 6,838 Kelvin.

HIP 25103 Apparent and Absolute Magnitudes

HIP 25103 has an apparent magnitude of 9.04 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 25103

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as -0.26 which gave the calculated distance to HIP 25103 as -12544.74 light years away from Earth or -3846.15 parsecs. It would take a spaceship travelling at the speed of light, -12544.74 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 25103 Facts and Figures

Visual Facts

Primary / Proper / Traditional NameHIP 25103
Alternative NamesHD 242908, HIP 25103, BD+33 1023
Spectral TypeO5
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeStar
Colour blue
GalaxyMilky Way
Visual / Apparent Magnitude9.04
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)05h 22m 29.30
Declination (Dec.)+33° 30` 50.5
Galactic Latitude-1.66 degrees
Galactic Longitude173.47 degrees
Distance from Earth-0.26 Parallax (milliarcseconds)
 -12544.74 Light Years
 -3846.15 Parsecs
 -793,319,856.62 Astronomical Units
B-V Index0.29
Radial Velocity-7.50 ± 1.80 km/s

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Estimated Facts

Calculated Effective Temperature6,838 Kelvin

Sources and Links

SIMBAD SourceLink

Related Stars

Comments and Questions

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