De zon begint weer leuke activiteit te vertonen. Hier opnamen van gisteren en vandaag van de zonnevlekkengroep 1164 en 1166 die vandaag te voorschijn kwam.

Bedankt André.

This entry was posted on donderdag, maart 3rd, 2011 at 20:20 by Peter Boot and is filed under Christiaan Huygens. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.