Class Clips is changing
We will be introducing the new Knowledge and Learning Beta website over the coming months. Clips for use in the classroom are now available on your phone, tablet or PC.


Alternatively, you can still browse or search by keyword or clip number on this site.

CLIP 9792

Galileo's sunspots are evidence for the Sun's rotation

Galileo's sunspots are evidence for the Sun's rotation
Play

Did you know?

All Class Clips content is available to watch on mobile, tablet and desktop devices on our new Knowledge & Learning BETA website.

Key Info
  • Galileo's sunspots are evidence for the Sun's rotation
  • Duration: 01:31
  • Sunspots provide evidence for the Sun's rotation. Until Galileo's observations of sunspots, people believed the Sun to be a perfect flat disc. The documentation of sunspots apparently travelling across the surface of the Sun suggested it was rotating. Published as part of the Solar System website: bbc.co.uk/solarsystem/. Please note this clip is only available in Flash.
  • Subject:

    Science

       Topic:

    Phys: Solar System

  • Keywords: sun, rotation, sunspot, Galileo
Ideas for use in class
  • To demonstrate an understanding of how astronomers use observations of sunspots to determine the Sun's rotation period. Also, to illustrate more generally how early scientists studied the Sun, in conjunction with clips 9798 and 9801.
Background details
  • Clip language : English
  • Aspect ratio : 16x9

BBC navigation

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.