Sunspots < Solar System in the Yahoo! Directory

Sunspot Index Data Center (SIDC)
Founded in 1981 to continue the work of the Z�rich Observatory.
sidc.oma.be
Solar Terrestrial Activity Report
Overview of solar and geomagnetic activity. Graphical comparison of recent solar cycles, sunspots, and solar flux. Generally updated once a day.
www.dxlc.com/solar
Inter-Sol Programme (ISP)
International programme with the purpose of observing the daily sunspot activity.
www.Inter-Sol.org
Sunspot Numbers
Introduction to how they were first computed by Rudolph Wolf in 1848, and how they are computed today.
web.ngdc.noaa.gov/stp/SOLAR/SSN/ssn.html
Exploratorium's Guide to Sunspots
Explore the nature of sunspots and the fascinating history of our efforts to understand them.
www.exploratorium.edu/sunspots
Athena: Sunspots
K-12 educational site.
inspire.ospi.wednet.edu:8001/curric/space/sun/sunspot.html
Sunspots, Aurora, and Magnetic Disturbances
Looking for the connection between the phenomena.
vathena.arc.nasa.gov/curric/space/solterr/sunaur.html
Educator's Guide to Sunspots
Classroom activity from the Jet Propulsion Laboratory's Education Gateway.
learn.jpl.nasa.gov/educators/sunspots.html
Sunspots and the Solar Cycle
Up-to-date monitoring of the sunspot cycle and Earth's aurora.
www.sunspotcycle.com

Solar System > Sunspots