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HIP 33071

Primary Facts on HIP 33071

HIP 33071's Alternative Names

HIP33071 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-15 1550.

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

Location of HIP 33071

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 object is compared to the celestial equator and is expressed in degrees. For HIP 33071, the location is 06h 53m 15.80 and -15° 28` 21.5 .

Physical Properties (Colour, Temperature) of HIP 33071

HIP 33071 has a spectral type of M0. This means the star is a red star. The star has a B-V Colour Index of 1.64 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 3,659 Kelvin.

HIP 33071 Radius has been calculated as being 10.24 times bigger than the Sun.The Sun's radius is 695,800km, therefore the star's radius is an estimated 7,122,714.49.km. If you need the diameter of the star, you just need to multiple the radius by 2. The figure is derived at by using the formula from SDSS and has been known to produce widely incorrect figures.

HIP 33071 Apparent and Absolute Magnitudes

HIP 33071 has an apparent magnitude of 9.61 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 1.78 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 33071

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 2.72 which gave the calculated distance to HIP 33071 as 1199.13 light years away from Earth or 367.65 parsecs. It would take a spaceship travelling at the speed of light, 1199.13 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 33071 Facts and Figures

Visual Facts


Primary / Proper / Traditional NameHIP 33071
Alternative NamesHIP 33071, BD-15 1550
Spectral TypeM0
Constellation's Main StarNo
Multiple Star SystemYes
Star TypeStar
Colour red
GalaxyMilky Way
ConstellationCanis Major
Absolute Magnitude 1.78
Visual / Apparent Magnitude9.61
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)06h 53m 15.80
Declination (Dec.)-15° 28` 21.5
Galactic Latitude-6.59 degrees
Galactic Longitude226.97 degrees
Distance from Earth2.72 Parallax (milliarcseconds)
 1199.13 Light Years
 367.65 Parsecs
 75,832,727.61 Astronomical Units
B-V Index1.64

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Estimated Calculated Facts


Radius (x the Sun)10.24
Effective Temperature3,659 Kelvin

Sources and Links


SIMBAD SourceLink

Multi-Star System

The star has been identified as being a multi-star system, one in which there is at least one star in close orbit to another star or two or more stars orbiting a central point. The stars may be of equal mass, unequal mass where one star is stronger than the other or be in groups orbiting a central point which doesn't necessarily have to be a star. More information can be found on my dedicated multiple star systems page. The source of the info is Simbad. The file is dated 2000 so any differences between this and any other source will be down to the actual source from where the information came from.


Proper Motion mas/yr
H.D. IdB.D. IdStar CodeMagnitudeR.A.Dec.SpectrumColourYear
-15 1550.0A9.800004.00000-3.00000M0Red
B12.100004.00000-3.000001991

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