Polar Stratospheric Clouds are also known as nacreous (mother of pearl) clouds due their iridescent appearance. They appear at altitudes between 15 and 25km above the Earth. They are best viewed at twilight,
Moderate aurora activity.
This blog provides information about current aurora activity in Finnish Lapland and the viewing conditions. Northern light photography requires aurora activity, clear to partly cloudy skies, and preferably little wind. Look out for occasional tips to get you ready for your own Arctic photography adventure.