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HD 150136

HD 150136 Facts

  • HD 150136 is a star that can be located in the constellation of Ara. The description is based on the spectral class.
  • HD 150136 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 - white.
  • The star can be seen with the naked eye, that is, you don't need a telescope/binoculars to see it.
  • The star is calculated at being about -1630.82 light years away from us. Distance

HD 150136's Alternative Names

HIP81702 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD150136.

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

Location of HD 150136

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 HD 150136, the location is 16h 41m 20.42 and -48 ° 45` 46.7 .

Physical Properties of HD 150136

HD 150136 Temperature and Colour

Based on the star's spectral type of O5 , HD 150136's colour and type is blue - white star. The star has a B-V Colour Index of 0.16 which means the star's temperature is about 7,747 Kelvin. The temperature was calculated using information from Morgans @ Uni.edu.

HD 150136 Radius

HD 150136 Apparent and Absolute Magnitudes

HD 150136 has an apparent magnitude of 5.57 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 HD 150136

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as -2.00 which gave the calculated distance to HD 150136 as -1630.82 light years away from Earth or -500 parsecs. If you want that in miles, it is about -9,586,979,831,095,294.86, based on 1 Ly = 5,878,625,373,183.61 miles.

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 HD 150136 Facts and Figures

Visual Facts


Primary / Proper / Traditional Name HD 150136
Alternative NamesHD 150136, HIP 81702
Spectral TypeO5
Constellation's Main StarNo
Multiple Star SystemYes
Star TypeStar
ColourBlue
GalaxyMilky Way
ConstellationAra
Visual / Apparent Magnitude5.57
Naked Eye VisibleYes - Magnitudes
Right Ascension (R.A.)16h 41m 20.42
Declination (Dec.)-48 ° 45` 46.7
Galactic Latitude-1.57 degrees
Galactic Longitude336.71 degrees
Distance from Earth-2.00 Parallax (milliarcseconds)
 -1630.82 Light Years
 -500 Parsecs
 -103,131,684.49 Astronomical Units
B-V Index0.16
Radial Velocity-27.00 ± 5.00 km/s

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Estimated Calculated Facts


Effective Temperature7,747 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
150136-4811070.2A5.70000-5.00000-2.00000O5Blue
B9.000001878

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