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HIP 2529

HIP 2529 is a star that can be located in the constellation of Andromeda. The description is based on the spectral class. HIP 2529 is not part of the constellation but is within the borders of the constellation.

The star can not be seen by the naked eye, you need a telescope to see it.

HIP 2529's Alternative Names

HIP2529 is the reference name for the star in the Hipparcos Star Catalogue.

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+29 95.

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

Location of HIP 2529

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 2529, the location is 00h 32m 05.12 and +30° 32` 39.1 .

Radial Velocity and Proper Motion of HIP 2529

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 -7.92 ± 1.22 miliarcseconds/year towards the north and 4.20 ± 1.57 miliarcseconds/year east if we saw them in the horizon.

The Radial Velocity, that is the speed at which the star is moving away/towards the Sun is 32.00 km/s with an error of about 999.00 km/s . When the value is negative then the star and the Sun are getting closer to one another, likewise, a positive number means that two stars are moving away. Its nothing to fear as the stars are so far apart, they won't collide in our life-time, if ever.

Physical Properties (Temperature) of HIP 2529

HIP 2529 has a spectral type of R.... The star has a B-V Colour Index of 1.2 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 4,568 Kelvin.

HIP 2529 Radius has been calculated as being 1.88 times bigger than the Sun.The Sun's radius is 695,800km, therefore the star's radius is an estimated 1,305,844.49.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 4.22. The figure is derived at by using the formula from SDSS and has been known to produce widely incorrect figures.

HIP 2529 Apparent and Absolute Magnitudes

HIP 2529 has an apparent magnitude of 10.34 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 4.50 If you used the 2007 Parallax value, you would get an absolute magnitude of 2.74. 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 2529

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 6.78 which gave the calculated distance to HIP 2529 as 481.07 light years away from Earth or 147.49 parsecs. It would take a spaceship travelling at the speed of light, 481.07 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 3.02 which put HIP 2529 at a distance of 1080.01 light years or 331.13 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 68,299,989.37 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

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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HIP 2529 Facts

Visual Facts


Primary / Proper / Traditional NameHIP 2529
Alternative NamesHIP 2529, BD+29 95
Spectral TypeR...
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeStar
GalaxyMilky Way
ConstellationAndromeda
Absolute Magnitude 4.50 / 2.74
Visual / Apparent Magnitude10.34
Naked Eye VisibleRequires a 4.5 - 6 Inch Telescope - Magnitudes
Right Ascension (R.A.)00h 32m 05.12
Declination (Dec.)+30° 32` 39.1
Galactic Latitude-32.14 degrees
Galactic Longitude118.01 degrees
1997 Distance from Earth6.78 Parallax (milliarcseconds)
 481.07 Light Years
 147.49 Parsecs
2007 Distance from Earth3.02 Parallax (milliarcseconds)
 1080.01 Light Years
 331.13 Parsecs
 68,299,989.37 Astronomical Units
Proper Motion Dec.-7.92 ± 1.22 milliarcseconds/year
Proper Motion RA.4.20 ± 1.57 milliarcseconds/year
B-V Index1.20
Radial Velocity32.00 ± 999.00 km/s

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Estimated Facts


Calculated Effective Temperature4,568 Kelvin

Sources and Links


SIMBAD SourceLink

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