Colour and Temperature of Stars
This Teaching Astronomy and Space video clip, from the Institute of Physics (IOP), Teachers TV and the Science and Technology Facilities Council (STFC), shows how it is possible to illustrate how the light emitted by a star is related to the star's temperature. Using a filamernt lamp and a variable resistor, the lamp glows first red, then yellow and eventually white as the voltage is increased and the filament temperature rises.
This is a simple yet effective way of demonstrating how analysing the light emitted from a star can give information about its temperature.
Please refer to the information and acknowledgements for this resource.
STFC is a part of the Research Councils UK (RCUK) partnership of research councils.
Show health and safety information
Please be aware that resources have been published on the website in the form that they were originally supplied. This means that procedures reflect general practice and standards applicable at the time resources were produced and cannot be assumed to be acceptable today. Website users are fully responsible for ensuring that any activity, including practical work, which they carry out is in accordance with current regulations related to health and safety and that an appropriate risk assessment has been carried out.