John Griffiths Astro Pages

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GCSE Astronomy >  [Lesson Summary Sheets]  > Bexley

 

Week 20(4th March 2010)

 

· HR diagram – understanding what it means

 

· Introduction to the evolution of the Sun – a low mass star

 

· Spectroscopy – using spectroscope to view spectra of various light sources

 

· Spectrum of the Sun – Fraunhofer absorption lines of the chemical elements in the spectrum

 

· Using the HR diagram to measure distances – spectroscopic parallax

 

· Introduction to what stellar spectra can tell us – composition, rotaion of stars, magnetic field of stars, velocity of stars (red and blue shift – the Doppler Effect)

 

· Observing session – Mars, Orion Nebula and Saturn

 

 

 

Week 21(11th March 2010)

 

· Exercise in magnitudes – Exam 2007 Q 20

 

· Space Exploration (Powerpoint)

 

 

 

 

 

 

 

 

GCSE Astronomy — Lesson Summary Sheets—Year 2009/10—Bexley

 

 

Week 22(18th March 2010)

 

· Observing across the electromagnetic spectrum

 

· Variable stars – an introduction – more next week

 

· Bring in coursework for discussion next week

 

 

 

 

Week 23(25th March 2010)

 

· Variable stars and double stars

 

· Our Galaxy – the Milky Way – an introduction

 

· Handed out 9 questions from the 2007 GCSE Astronomy paper