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Foramen (Eta Carinae) Star Facts

Foramen Facts

Foramen's Alternative Names

(Eta Carinae) is the Bayer Classification for the star. The Bayer Classification was created by Johann Bayer in 1603. The brightest star in the constellation is normally given the Alpha designation, there are exceptions such as Pollux which is Beta Geminorum.

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

Location of Foramen

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 Foramen, the location is 10h 45m 03 and -59° 41` 04 .

Physical Properties (Colour, Temperature, Age) of Foramen

Foramen Colour and Temperature

Foramen has a spectral type of O. This means the star is a blue - white star. Foramen lies at a distance of 7,500.00 light years away from our Sun and our planet Earth or to put it another way, 2,299.46 parsecs away from the Sun. The star has a B-V Colour Index of 0.61 which means the star's temperature is about 5,852 Kelvin. The temperature was calculated using information from Morgans @ Uni.edu at being .

The star is believed to be about 0.30 Billion years old. To put in context, the Sun is believed to be about five billion years old and the Universe is about 13.8 billion years old.

Foramen Apparent and Absolute Magnitudes

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.

Meteor Showers Radiating from near Foramen

The Eta Carinids Meteor Shower radiants from a point near this star. The meteor shower runs typically between 14-Jan - 27 Jan with a peak date of 21 - Jan.

Distance to Foramen

Foramen is an estimated 7,500.00 light years from our Solar System (Earth and Sun). It would take a spaceship 7,500.00 years travelling at the speed of light to get there. We don't have a space ship that can travel that distance or at that speed yet.

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Additional Foramen Facts and Figures

Visual Facts


Primary / Proper / Traditional NameForamen
Alternative NamesEta Carinae
Spectral TypeO
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeStar
ColourBlue
GalaxyMilky Way
ConstellationCarina
Age0.30 Billion Years Old
Right Ascension (R.A.)10h 45m 03
Declination (Dec.)-59° 41` 04
Distance from the Sun / Earth7,500.00 Light Years
B-V Index0.61
Eccentricity0.90
Inclination130.00

Companions (Multi-Star and Exoplanets) Facts


Exoplanet CountNone/Unaware

Location of Foramen in Carina


Foramen Location in Carina

The map was generated using Night Vision, an awesome free application by Brian Simpson.

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