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HIP 25351, HD36767

HIP 25351 Facts

HIP 25351's Alternative Names

HIP25351 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD36767.


Location of HIP 25351


Radial Velocity and Proper Motion of HIP 25351

Proper Motion

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 -309.98 ± 0.27 milliarcseconds/year towards the north and -103.61 ± 0.37 milliarcseconds/year east if we saw them in the horizon.

Radial Velocity


HIP 25351 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 1.60 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) of HIP 25351

HIP 25351 Colour and Temperature


HIP 25351 Radius

Radius has been calculated as being 1.07 times bigger than the Sun. The Sun's radius is 695,800km, therefore the star's radius is an estimated 744,562.31.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 1.08. 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 -0.22 with an error value of 0.08 Fe/H with the Sun has a value of 1 to put it into context.

HIP 25351 Apparent and Absolute Magnitudes

HIP 25351 has an apparent magnitude of 7.17 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 4.42 If you used the 2007 Parallax value, you would get an absolute magnitude of 4.40. 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 25351

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 28.14 which gave the calculated distance to HIP 25351 as 115.91 light years away from Earth or 35.54 parsecs. It would take a spaceship travelling at the speed of light, 115.91 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 27.88 which put HIP 25351 at a distance of 116.99 light years or 35.87 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.

Using the 2007 distance, the star is roughly 7,398,667.05 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.


Source of Information


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Additional HIP 25351 Facts and Figures

Visual Facts

Primary / Proper / Traditional NameHIP 25351
Alternative NamesHD 36767, HIP 25351
Spectral TypeF8V
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star Type Main Sequence Dwarf Star
ColourYellow - White
GalaxyMilky Way
Absolute Magnitude 4.42 / 4.40
Visual / Apparent Magnitude7.17
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)05h 25m 19.28
Declination (Dec.)-75° 41` 29.9
Galactic Latitude-31.50 degrees
Galactic Longitude287.29 degrees
1997 Distance from Earth28.14 Parallax (milliarcseconds)
 115.91 Light Years
 35.54 Parsecs
2007 Distance from Earth27.88 Parallax (milliarcseconds)
 116.99 Light Years
 35.87 Parsecs
 7,398,667.05 Astronomical Units
Galacto-Centric Distance24,106.73 Light Years / 7,391.00 Parsecs
Proper Motion Dec.-309.98 ± 0.27 milliarcseconds/year
Proper Motion RA.-103.61 ± 0.37 milliarcseconds/year
B-V Index0.53
Radial Velocity45.90 ± 0.20 km/s
Iron Abundance-0.22 ± 0.08 Fe/H
Semi-Major Axis7699.00
Stellar Luminosity (Lsun)1.60

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Estimated Calculated Facts

Radius (x the Sun)1.08
Effective Temperature6,162 Kelvin

Sources and Links

SIMBAD SourceLink

Related Stars

Comments and Questions



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