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HIP 66448

HIP 66448 is a star that can be located in the constellation of Ursa Major. The description is based on the spectral class. The star can not be seen by the naked eye, you need a telescope to see it.

HIP 66448's Alternative Names

HIP66448 is the reference name for the star in the Hipparcos Star Catalogue.

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

Location of HIP 66448

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 66448, the location is 13h 37m 18.45 and +51° 32` 16.9 .

Proper Motion of HIP 66448

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 30.50 ± 1.01 miliarcseconds/year towards the north and -222.92 ± 1.30 miliarcseconds/year east if we saw them in the horizon. . 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.

HIP 66448 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 0.78 that I have given is based on the value in the Simbad Hipparcos Extended Catalogue at the University of Strasbourg from 2012.

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 66448 Facts

Visual Facts


Primary / Proper / Traditional NameHIP 66448
Alternative NamesHIP 66448
Multiple Star SystemNo / Unknown
Star TypeStar
GalaxyMilky Way
ConstellationUrsa Major
Absolute Magnitude5.46 / 5.30
Visual / Apparent Magnitude9.78
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)13h 37m 18.45
Declination (Dec.)+51° 32` 16.9
Galactic Latitude64.10 degrees
Galactic Longitude106.49 degrees
1997 Distance from Earth13.67 Parallax (milliarcseconds)
 238.60 Light Years
 73.15 Parsecs
2007 Distance from Earth12.69 Parallax (milliarcseconds)
 257.02 Light Years
 78.80 Parsecs
Galacto-Centric Distance24,168.70 Light Years / 7,410.00 Parsecs
Proper Motion Dec.30.50 ± 1.01 milliarcseconds/year
Proper Motion RA.-222.92 ± 1.30 milliarcseconds/year
B-V Index0.83
Stellar Luminosity (Lsun)0.78

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Sources and Links


SIMBAD SourceLink

Related Stars


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