Good Chance for an Aurora Tonight April 13, 2013

Hope for a clear night tonight.  The Solar Flare should hit and produce Aurora that could be visible in Southeastern Massachusetts and elsewhere throughout  the World.  See http://www.accuweather.com/en/weather-news/dazzling-northern-lights-antic-1/10107004

Here are setting to try to capture the Aurora.  Good Luck

Aurora

Time in seconds @ ISO 400

Auroral Brightness	f/2.8	f/4.0
1	40-60	80-120
2	20-30	40-60
3	5-10	10-20
4	2-3	4-6