title: Astronomy. How old is that star?
abstract: Despite being fundamental in determining its physical state, a star's age cannot be measured directly, and estimation methods are imprecise.
authors.affiliation: Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA. soderblom@stsci.edu
authors.forename: David R
authors.initials: DR
authors.lastname: Soderblom