Daily cosmobite: our shaking star

Daily cosmobite: our shaking star

Published by Nick Lomb on May 8, 2013 No Comments

atest_1024_HMID_SDO-Dopplergram_23-April-2013.jpgDid you know that our nearest star, the Sun, not only shows sunspots but is also shaking? The violent motion of gases in the outer layers of the Sun triggers waves of small scale shaking or vibration. These waves repeat every five minutes or so and take only a few hours to travel across the star.

A dopplergram of the Sun showing waves on its surface. Courtesy SDO/HMI

Leave a Reply

Search

About

The 'Observations' blog is run by the staff of Sydney Observatory which is located at Observatory Hill, The Rocks, in Sydney, Australia.

This site is for discussion purposes only and does not represent the official views of Sydney Observatory. Any views expressed on this website are those of the individual post author only. Sydney Observatory accepts no liability for the content of this site.

Please direct any correspondence about the content of the blog to:
observatory [at] phm.gov.au
and about web matters to:
web [at] phm.gov.au.