The Ages of Stars

Open Night on 9 February 2019
“The Ages of Stars”


Members of the public are welcome to an Open Night at the SAAO in Cape Town on 9 February 2019, starting at 20h00. Dr. Brian Chaboyer (Dartmouth College, USA) will present a talk titled The Ages of Stars. This will be followed by a tour of the site and (weather permitting) star gazing.

Summary of the talk

The age of a star is one of its fundamental parameters, but astronomers cannot determine the age of a star directly. We must compare theoretical models of stars to observations to infer the ages of stars. Dr. Brian Chaboyer will describe how astronomers make models of stars, and determine stellar ages. These ages are used to study how our Milky Way galaxy formed, and he will highlight the insights we have gained into the formation of galaxies by studying the ages of stars in the Milky Way.


The Open Night will take place at the SAAO in Cape Town. The SAAO is located off Liesbeeck Parkway, next to the River Club.


Gates open at 19h30 and parking is available on site.

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