Age of the sun

Details Age of the sun Age of the sun

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...339.1156g&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 339, April 15, 1989, p. 1156-1159.

Astronomy and Astrophysics

Astrophysics

66

Meteorites, Solar Interior, Stellar Evolution, Helium, Solar Oscillations, Stellar Models

Scientific paper

The age of the sun is deduced to be 4.49 + or - 0.04 Gyr. This determination is based on the ages of the oldest meteorites, current models of solar system formation, and the premain-sequence evolution of a 1-solar-mass star from T Tauri phase to the ZAMS. Prior to this it was common to use an age of 4.7 Gyr for the sun. Comparing a solar model evolved to 4.5 Gyr with a model evolved to 4.7 Gyr shows that the 200 Myr difference in their ages has very little effect on the helium abundance and mixing-length parameters of the solar models.

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