Astronomical spectroscopy
Obtain real spectra of stars, galaxies & nebulae.
See how different star types have different spectra. We begin with OBAFGKM & move on to many other star types.
Learn how historical figures such as Annie Cannon & Cecilia Payne classified & analysed spectra, contributing to our knowledge about the cosmos.
Fraunhofer lines
Identify the Fraunhofer lines in daylight spectrum & see what Joseph von Fraunhofer discovered in the early 19th century.
A great activity to spark school children's interest in science.
Stellar evolution
How do we know these? Much of it from spectroscopy!
Gas discharge tubes
See beautiful spectra from gases
Calculate the Rydberg constant
Learn about quantum physics
Diffraction Experiments
Relive the classic Young's double slit experiment
See wave-like aspect of light
Spectral Analysis
Measure redshifts of receding galaxies
Estimate electron temperatures and densities of planetary nebulae
Follow evolution of newly discovered novae
Analyse radial velocities of binaries to 'observe' black holes
Find elemental abundances from stellar spectra
And many other exciting projects
Michelson Interferometer
Demonstration of the principle behind the detection of gravitational waves. Our new Lego-LIGO Michelson Interferometer!