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HD 58535

HD 58535 Facts

HD 58535's Alternative Names

HIP35957 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD58535.

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

Location of HD 58535

The location of the giant 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 58535, the location is 07h 24m 43.87 and -31° 48` 32.1 .

Radial Velocity and Proper Motion of HD 58535

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 8.26 ± 0.29 milliarcseconds/year towards the north and -20.46 ± 0.38 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 19.90 km/s with an error of about 0.80 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.

HD 58535 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 381.94 that I have given is based on the value in the Simbad Hipparcos Extended Catalogue at the University of Strasbourg from 2012.

Physical Properties (Colour, Temperature) of HD 58535

HD 58535 Colour and Temperature

HD 58535 has a spectral type of K1III. This means the star is a orange to red giant star. The star has a B-V Colour Index of 1.07 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 4,718 Kelvin.

HD 58535 Radius

Radius has been calculated as being 20.11 times bigger than the Sun. The Sun's radius is 695,800km, therefore the star's radius is an estimated 13,991,997.31.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 24.07. The figure is derived at by using the formula from SDSS and has been known to produce widely incorrect figures.

HD 58535 Apparent and Absolute Magnitudes

HD 58535 has an apparent magnitude of 5.35 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 -0.79 If you used the 2007 Parallax value, you would get an absolute magnitude of -1.18. 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 58535

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 5.91 which gave the calculated distance to HD 58535 as 551.88 light years away from Earth or 169.20 parsecs. If you want that in miles, it is 3,881,362,402,644,471.90.

In 2007, Hipparcos data was revised with a new parallax of 4.94 which put HD 58535 at a distance of 660.25 light years or 202.43 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 41,753,893.78 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.

The star's Galacto-Centric Distance is 7,486.00 Parsecs or 24,416.59 Light Years. The Galacto-Centric Distance is the distance from the star to the Centre of the Galaxy which is Sagittarius A*.

Time to Travel to HD 58535

A note about the calculations, when I'm talking about years, I'm talking non-leap years only (365 days).

If you were to drive there at about 120 m.p.h. in a car with an infinity engine so you didn't have to pull over for petrol, it would take you 27,035,798,091,271.38 hours or 3,086,278,320.92 years.

At the time of writing, the fastest probe so far created is the New Horizon probe which is travelling at a speed of 33,000 m.p.h. If the probe was travelling to HD 58535 then it would take 98,311,993,059.17 hours / 11,222,830.26 years to get there. Speed Ref: N.A.S.A.

It would to take a spaceship journey travelling at the speed of light, 551.88 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 HD 58535 Facts and Figures

Visual Facts


Primary / Proper / Traditional NameHD 58535
Alternative NamesHD 58535, HIP 35957
Spectral TypeK1III
Constellation's Main StarNo
Multiple Star SystemYes
Star TypeGiant Star
ColourOrange to Red
GalaxyMilky Way
ConstellationCanis Major
Absolute Magnitude -0.79 / -1.18
Visual / Apparent Magnitude5.35
Naked Eye VisibleYes - Magnitudes
Right Ascension (R.A.)07h 24m 43.87
Declination (Dec.)-31° 48` 32.1
Galactic Latitude -7.52 degrees
Galactic Longitude244.92 degrees
1997 Distance from Earth5.91 Parallax (milliarcseconds)
 551.88 Light Years
 169.20 Parsecs
2007 Distance from Earth4.94 Parallax (milliarcseconds)
 660.25 Light Years
 202.43 Parsecs
 41,753,893.78 Astronomical Units
Galacto-Centric Distance24,416.59 Light Years / 7,486.00 Parsecs
Proper Motion Dec.8.26 ± 0.29 milliarcseconds/year
Proper Motion RA.-20.46 ± 0.38 milliarcseconds/year
B-V Index1.07
Radial Velocity19.90 ± 0.80 km/s
Eccentricity0.07
Semi-Major Axis8017.00
Stellar Luminosity (Lsun)381.94

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Estimated Calculated Facts


Radius (x the Sun)24.07
Effective Temperature4,718 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
58535-31 4482.2A5.50000-20.0000010.00000K2Orange
B11.000001922
58534-31 4481.2C7.60000-6.000000.00000A0White1922
CD10.800001929

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