Universe Guide

HD 115444

HD 115444 Facts

  • HD 115444 is a star that can be located in the constellation of Canes Venatici. The description is based on the spectral class.
  • HD 115444 is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (K0) of the star, the star's colour is orange to red .
  • The star can not be seen by the naked eye, you need a telescope to see it.
  • The star is calculated at being about 918.77 light years away from us. Distance

HD 115444's Alternative Names

HIP64786 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD115444.

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+37 2388.

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

Location of HD 115444

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 115444, the location is 13h 16m 42.46 and +36° 22` 53.2 .

Radial Velocity and Proper Motion of HD 115444

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 -59.46 ± 0.60 milliarcseconds/year towards the north and 3.85 ± 1.01 milliarcseconds/year east if we saw them in the horizon.

Radial Velocity

The Radial Velocity, that is the speed at which the star is moving away/towards the Sun is -27.19000 km/s with an error of about 0.33 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 of HD 115444

HD 115444 Colour and Temperature

Based on the star's spectral type of K0 , HD 115444's colour and type is orange to red star. The star has a B-V Colour Index of 0.74 which means the star's temperature is about 5,558 Kelvin. The temperature was calculated using information from Morgans @ Uni.edu.

HD 115444 Radius

HD 115444 estimated radius has been calculated as being 4.58 times bigger than the Sun. The Sun's radius is 695,800km, therefore the star's radius is an estimated 3,188,114.84.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 rather than peer reviewed papers. It has been known to produce widely incorrect figures.

HD 115444 Iron Abundance

HD 115444 Iron Abundance is -2.59 with an error value of 0.02 Fe/H with the Sun has a value of 1 to put it into context. The value comes from the Hipparcos Extended Catalog.

HD 115444 Apparent and Absolute Magnitudes

HD 115444 has an apparent magnitude of 8.96 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 1.71 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 115444

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 3.55000 which gave the calculated distance to HD 115444 as 918.77 light years away from Earth or 281.69 parsecs. If you want that in miles, it is about 5,401,104,634,119,905.36, based on 1 Ly = 5,878,625,373,183.61 miles.

Travel Time to HD 115444

The time it will take to travel to this star is dependent on how fast you are going. U.G. has done some calculations as to how long it will take going at differing speeds. A note about the calculations, when I'm talking about years, I'm talking non-leap years only (365 days).

The New Horizons space probe is the fastest probe that we've sent into space at the time of writing. Its primary mission was to visit Pluto which at the time of launch (2006), Pluto was still a planet.

DescriptionSpeed (m.p.h.)Time (years)
Airbus A380736837,150,054.66
Speed of Sound (Mach 1)767.269803,033,147.73
Concorde (Mach 2)1,534.54401,516,050.56
New Horizons Probe33,00018,670,983.04
Speed of Light670,616,629.00918.77

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 115444 Facts and Figures

Visual Facts

Primary / Proper / Traditional NameHD 115444
Alternative NamesHD 115444, HIP 64786, BD+37 2388
Spectral TypeK0
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeStar
ColourOrange to Red
GalaxyMilky Way
ConstellationCanes Venatici
Absolute Magnitude 1.71
Visual / Apparent Magnitude8.96
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)13h 16m 42.46
Declination (Dec.)+36° 22` 53.2
Galactic Latitude79.30727851 degrees
Galactic Longitude94.41226513 degrees
Distance from Earth3.55000 Parallax (milliarcseconds)
 918.77 Light Years
 281.69 Parsecs
 58,102,328.41 Astronomical Units
Proper Motion Dec.-59.46000 ± 0.60000 milliarcseconds/year
Proper Motion RA.3.85000 ± 1.01000 milliarcseconds/year
B-V Index0.74
Radial Velocity-27.19000 ± 0.33 km/s
Iron Abundance-2.5900 ± 0.02 Fe/H

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Estimated Calculated Facts

Radius (x the Sun)4.58
Effective Temperature5,558 Kelvin

Sources and Links

SIMBAD SourceLink

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Comments and Questions

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