John Griffiths Astro Pages

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GCSE Astronomy >  [Lesson Summary Sheets]  > SL&W G&T

· Introduction to the HR diagram

 

· Introduction to stellar spectra and spectral types  - next

 

 

 

Week 19 (6th March 2010 )

 

· Recap apparent magnitude (m), absolute magnitude (M) and distance (d in parsecs)

 

· Distance Modules equation relating m, M and d

 

· Recap HR diagram – what it means

 

· Table of typical star data for main sequence stars

 

· Importance of the mass of a 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

 

 

 

Week 20 (13th March 2010 )

 

· Space Exploration + brief history of rocketry

 

· Disadvantages and advantages of sending telescopes into space

 

 

 

GCSE Astronomy — Lesson Summary Sheets—Year 2009/10—SL&W G&T

 

· Uses and types of artificial Earth satellites

 

· Sun – observing – how to and dangers

 

· Hydrogen alpha telescope solar observing

 

· Week’s work

 

· Read Power Points on Space Exploration and (ready for next lesson)

Electromagnetic spectrum

 

· Bring along coursework to next lesson

 

 

 

Week 21 (20th March 2010 )

 

· Electromagnetic spectrum

 

· Coursework session

 

· The equinox – see PPT on Celestial Coordinates

 

· Next week Seasons and sundials and variable stars

 

 

 

Week 22 (27th March 2010 )

 

· Variable stars

 

· The Milky Way – overview – more at next lesson

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