Head of the Baldone Astrophysical observatory
2010 – 2018 Director of the Institute of Astronomy, University of Latvia
1997 – present Leading researcher
1987 – 1997 Senior researcher
1974 – 1987 Lab. and junior researcher
Main activities and responsibilities Spectrophotometry of late star and astrometry of Solar system small bodies
By watching a presentation students get the information about stages of stellar evolution. Then using the computer animation students explore the changes of stellar parameters during different stages of stellar evolution. Finally they draw a schematic diagram of stellar evolution.
Age Range: 14 – 17 years Prep. Time: 5 mins Lesson Time: 45 mins Cost per activity: Printing of student’s worksheets Includes the use of: Computer for each group of students
By using computer animation students get knowledge about different spectral classes of stars and typical spectral lines of each spectral class. Then they explore the picture of real stellar spectra.
Age Range: 14 – 17 years Prep. Time: Zero, if Activity 2 is done before Lesson Time: 35 mins Cost per activity: Printing of student’s worksheets Includes the use of: Computer for each group of students
“Stars are much like humans. They are born, live their lives and die.” Ilgmars Eglitis, astronomer
Observing the spectra of stars allows us to look deep into their origin and characteristics. A large catalog of star spectra exists at Baldone Observatory in Latvia, which is being made available online this year.
In the picture above, each horizontal “line” is the raw spectrum of one star. These are investigated with simple graphical tools, allowing us to determine each stars characteristics, origin and evolutionary state.
More educational material will appear on these pages over time. So far, you can play with this Black Body radiation calculator.