Universe Guide

GH Carinae

GH Carinae Facts

  • GH Carinae is a pulsating variable star that can be located in the constellation of Carina. The description is based on the spectral class.
  • GH Carinae is not part of the constellation outline but is within the borders of the constellation.
  • Based on the spectral type (G0) of the star, the star's colour is yellow .
  • The star can not be seen by the naked eye, you need a telescope to see it.
  • The star is calculated at being about 7585.19 light years away from us. Distance

GH Carinae's Alternative Names

HIP54621 is the reference name for the star in the Hipparcos Star Catalogue. The Id of the star in the Henry Draper catalogue is HD306077.

GH Carinae has alternative name(s) :- GH Car, GH Car.

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

Location of GH Carinae

The location of the variable 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 GH Carinae, the location is 11h 10m 44.60 and -60° 45` 01.0 .

Physical Properties of GH Carinae

GH Carinae Temperature and Colour

Based on the star's spectral type of G0 , GH Carinae's colour and type is yellow variable star. The star has a B-V Colour Index of 0.79 which means the star's temperature is about 5,444 Kelvin. The temperature was calculated using information from Morgans @ Uni.edu.

GH Carinae Radius

GH Carinae estimated radius has been calculated as being 36.91 times bigger than the Sun. The Sun's radius is 695,800km, therefore the star's radius is an estimated 25,679,017.25.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.

GH Carinae Apparent and Absolute Magnitudes

GH Carinae has an apparent magnitude of 9.10 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 -2.73 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 GH Carinae

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 0.43000 which gave the calculated distance to GH Carinae as 7585.19 light years away from Earth or 2325.58 parsecs. If you want that in miles, it is about 44,590,490,394,418,586.74, based on 1 Ly = 5,878,625,373,183.61 miles.

Travel Time to GH Carinae

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 A3807366,911,351,288.21
Speed of Sound (Mach 1)767.2696,629,688,607.42
Concorde (Mach 2)1,534.543,314,839,983.40
New Horizons Probe33,000154,144,077.22
Speed of Light670,616,629.007,585.19

Variable Type of GH Carinae

The star is a pulsating Delta Cepheid variable type which means that its size changes over time. The Variable Type is usually named after the first star of that type to be spotted. GH Carinae brightness ranges from a magnitude of 9.457 to a magnitude of 9.148 over its variable period. The smaller the magnitude, the brighter the star. Its variable/pulsating period lasts for 5.7 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 GH Carinae Facts and Figures

Visual Facts

Primary / Proper / Traditional NameGH Carinae
Alternative NamesGH Car, HD 306077, HIP 54621, GH Car
Spectral TypeG0
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeVariable Star
GalaxyMilky Way
Absolute Magnitude -2.73
Visual / Apparent Magnitude9.10
Naked Eye VisibleRequires a 7x50 Binoculars - Magnitudes
Right Ascension (R.A.)11h 10m 44.60
Declination (Dec.)-60° 45` 01.0
Galactic Latitude-0.24545530 degrees
Galactic Longitude290.93603890 degrees
Distance from Earth0.43000 Parallax (milliarcseconds)
 7585.19 Light Years
 2325.58 Parsecs
 479,681,965.64 Astronomical Units
B-V Index0.79

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

Variable Star Details

Variable Star ClassPulsating
Variable Star TypeDelta Cepheid
Mean Variability Period in Days5.725
Variable Magnitude Range (Brighter - Dimmer)9.148 - 9.457

Estimated Calculated Facts

Radius (x the Sun)36.91
Effective Temperature5,444 Kelvin

Sources and Links

SIMBAD SourceLink

Related Stars

Comments and Questions

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