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V413 Coronae Australis

V413 Coronae Australis Facts

V413 Coronae Australis's Alternative Names

HIP92244 is the reference name for the star in the Hipparcos Star Catalogue.

V413 Coronae Australis has alternative name(s) :- V413 CrA, V413 CrA.

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

Location of V413 Coronae Australis

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 V413 Coronae Australis, the location is 18h 47m 57.65 and -37° 44` 22.3 .

Physical Properties (Colour, Temperature) of V413 Coronae Australis

V413 Coronae Australis Colour and Temperature

V413 Coronae Australis has a spectral type of F5. This means the star is a blue to white variable star. The star has a B-V Colour Index of 0.41 which means the star's temperature has been calculated using information from Morgans @ Uni.edu at being 6,366 Kelvin.

V413 Coronae Australis Radius

Radius has been calculated as being 8.38 times bigger than the Sun. The Sun's radius is 695,800km, therefore the star's radius is an estimated 5,829,837.20.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 and has been known to produce widely incorrect figures. The star's Iron Abundance is -1.21 with an error value of 9.99 Fe/H with the Sun has a value of 1 to put it into context.

V413 Coronae Australis Apparent and Absolute Magnitudes

V413 Coronae Australis has an apparent magnitude of 10.71 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 -0.19 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 V413 Coronae Australis

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 0.66 which gave the calculated distance to V413 Coronae Australis as 4941.87 light years away from Earth or 1515.15 parsecs. It would take a spaceship travelling at the speed of light, 4941.87 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

Variable Type of V413 Coronae Australis

The star is a pulsating RR Lyrae type with a 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. V413 Coronae Australis brightness ranges from a magnitude of 11.010 to a magnitude of 10.297 over its variable period. The smaller the magnitude, the brighter the star. Its variable/pulsating period lasts for 0.6 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 V413 Coronae Australis Facts and Figures

Visual Facts


Primary / Proper / Traditional NameV413 Coronae Australis
Alternative NamesV413 CrA, HIP 92244, V413 CrA
Spectral TypeF5
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeVariable Star
ColourYellow - White
GalaxyMilky Way
ConstellationCorona Australis
Absolute Magnitude -0.19
Visual / Apparent Magnitude10.71
Naked Eye VisibleRequires a 4.5 - 6 Inch Telescope - Magnitudes
Right Ascension (R.A.)18h 47m 57.65
Declination (Dec.)-37° 44` 22.3
Galactic Latitude-15.57 degrees
Galactic Longitude358.10 degrees
Distance from Earth0.66 Parallax (milliarcseconds)
 4941.87 Light Years
 1515.15 Parsecs
 312,519,943.52 Astronomical Units
B-V Index0.41
Radial Velocity-90.70 ± 2.70 km/s
Iron Abundance-1.21 ± 9.99 Fe/H

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Variable Star Details


Variable Star ClassPulsating
Variable Star TypeRR Lyrae type with a
Mean Variability Period in Days0.589
Variable Magnitude Range (Brighter - Dimmer)10.297 - 11.010

Estimated Calculated Facts


Radius (x the Sun)8.38
Effective Temperature6,366 Kelvin

Sources and Links


SIMBAD SourceLink

Related Stars


Comments and Questions

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