Universe Guide

HD 219460 (Wolf-Rayet Star) Facts

HD 219460 Facts

HD 219460's Alternative Names

HIP114791 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD219460.

HD 219460 has alternative name(s) :- , V458 Cep.

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+59 2683.

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

Location of HD 219460

The location of the wolf-rayet 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 219460, the location is 23h 15m 12.41 and +60° 27` 01.9 .

Wolf-Rayet Star

The star is a Wolf-Rayet, a rare type of star of which not many are known. These stars are extremely luminous and large compared to our Sun. They live fast and die hard in a matter of millions not billions of years like our Sun. They exhaust their hydrogen supplies, turning to other gasses and expand outwards with massive solar winds, moving a step closer in the stellar evolution towards their death in a super or hypernova explosion.

Physical Properties of HD 219460

HD 219460 Colour and Temperature

HD 219460 has a spectral type of WN4.5.

HD 219460 Apparent and Absolute Magnitudes

HD 219460 has an apparent magnitude of 9.58 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 -3.18 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 219460

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 0.28 which gave the calculated distance to HD 219460 as 11648.69 light years away from Earth or 3571.43 parsecs. If you want that in miles, it is 7,811,805,220,066.

Travel Time to HD 219460

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 A38073610,613,865,788.13
Speed of Sound (Mach 1)767.26910,181,312,186.56
Concorde (Mach 2)1,534.545,090,649,458.51
New Horizons Probe33,000236,721,370.31
Speed of Light670,616,629.0011,648.69
HD 219460 brightness ranges from a magnitude of 9.821 to a magnitude of 9.636 over its variable period. The smaller the magnitude, the brighter the star. Its variable/pulsating period lasts for 0.2 days (variability).

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 219460 Facts and Figures

Visual Facts

Primary / Proper / Traditional NameHD 219460
Alternative NamesHD 219460, HIP 114791, BD+59 2683, V458 Cep, WR 157
Spectral TypeWN4.5
Constellation's Main StarNo
Multiple Star SystemYes
Star TypeWolf-Rayet star
GalaxyMilky Way
Absolute Magnitude -3.18
Visual / Apparent Magnitude9.58
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)23h 15m 12.41
Declination (Dec.)+60° 27` 01.9
Galactic Latitude-0.24 degrees
Galactic Longitude111.33 degrees
Distance from Earth0.28 Parallax (milliarcseconds)
 11648.69 Light Years
 3571.43 Parsecs
 736,655,183.89 Astronomical Units
B-V Index-99.00

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Variable Star Details

Mean Variability Period in Days0.190
Variable Magnitude Range (Brighter - Dimmer)9.636 - 9.821

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
219460+59 2683.0A9.70000-3.00000-3.00000OaBlue

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