Aurora Field Notes

Observation log — northern latitudes

Clear skies, quiet activity

Kp index held near 2 for most of the week. Nothing visible below the 60th parallel, though the horizon glow after midnight was worth the cold. Camera settings unchanged: ISO 1600, f/2.8, eight seconds.

Notes on cloud cover

Persistent low stratus made most evenings a write-off. The forecast models disagreed with each other by several hours, which is fairly typical this time of year.

Equipment log

Replaced the intervalometer cable after it failed in the cold for the second time. Battery performance below minus twenty remains the limiting factor.