Calculating the Mass of the Sun

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Essential information

Key stage: 
Key Stage 4
Resource type: 
Classroom activity
Location: 
Royal Observatory
School subject: 
Astronomy, Maths, Science

Students use Kepler's 3rd law and Saturn's orbit to calculate the mass of the Sun. Accompanies the video 'How do we know how old the Sun is?'.

Download resource: 
PDF icon KS4 calculating the mass of the sun.pdf