Universe Guide

Caffau's Star

Caffau's Star Facts

  • Caffau's Star is a star that can be located in the constellation of Leo. The description is based on the spectral class.
  • Caffau's Star is not part of the constellation outline but is within the borders of the constellation.
  • The star can not be seen by the naked eye, you need a telescope to see it.

Information on Caffau's Star

The star is named after Elisabetta Caffau who was the lead scientist on the project that studied the star. The star should not exist, it is a metal poor star, one that consists mainly of hydrogen and helium. The star should contain a lithium, carbon and iron but there isn't anywhere near as much as scientists believe there should be for this type of star. It is believed to be one of the Oldest and Earliest Stars in the galaxy.

This star has been estimated to have been around for nearly 13 billion years, that's nearly as old as the universe itself at 13.8 billion years. the Sun in comparison is only about 5 billion years give or take. The first stars were giant stars which didn't live long and soon died out, exploding in supernovas which then provided the ingredients for the next generation of stars which this star is believed to be one. Time

Location of Caffau's Star

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 Caffau's Star, the location is 10h 29m 15.15 and 17° 29` 28 .

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Additional Caffau's Star Facts and Figures

Visual Facts

Primary / Proper / Traditional NameCaffau's Star
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star Type Star
GalaxyMilky Way
Visual / Apparent Magnitude16.92
Naked Eye VisibleRequires 8m Telescope - Magnitudes
Right Ascension (R.A.)10h 29m 15.15
Declination (Dec.)17° 29` 28

Companions (Multi-Star and Exoplanets) Facts

Exoplanet CountNone/Unaware

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