Skip to content
Skip to main content

About this free course

Author

Download this course

Share this free course

Astronomy with an online telescope
Astronomy with an online telescope

Start this free course now. Just create an account and sign in. Enrol and complete the course for a free statement of participation or digital badge if available.

Described image
Figure 5 Artist’s impression of eclipsing binary stars. The light curve below shows how the brightness as seen from Earth dips on a regular basis as one star passes in front of another. (ESO.org)

 3.1 Measuring the masses of stars