Stellar physics

The stars are the main building blocks of the visible universe. The stars act as thermonuclear reactors in which all chemical elements heavier than hydrogen and helium are synthesized.

The astronomers of the Tartu Observatory study different types of stars, both observationally and theoretically.

Employees of the department



The main research directions

  • variability and evolution of massive stars,
  • exoplanet host stars and planet-star interaction,
  • stellar envelopes, discs and other ejecta,
  • symbiotic and similar binary stars,
  • model atmospheres and synthetic spectra of hot stars


KuupKulgur - Tartu observatoorium - Tartu Ülikool

Scientists and students to develop the first Estonian lunar rover


Doctoral defence: Toni Tuominen “Missing baryons and the large-scale structure of the universe”

On 10 March at 13, Toni Tuominen will defend his PhD thesis on "Missing baryons and the large-scale structure of the universe".
EXOHOST kick-off meeting - Tartu observatoorium - Tartu Ulikool

Tartu Observatory's stellar physicists take Estonia to a level of excellence in exoplanetary star research