Aurora borealis links

• The ABC of the aurora photography (in Finnish)
• Astronetti's Astrophotography-FAQ (in Finnish)
• Tom Eklund's Aurora Borealis -page
• Jouni Jussila's Aurora Borealis -page
• Pekka Parviainen: Polar Image
• The Geophysical Observatory in Nurmijärvi, Finland (in Finnish)
• The Geophysical Observatory in Sodankylä, Finland
• Ursa's northern lights section (in Finnish)
• Costello index
• Spaceweather now
• www.spaceweather.com