We observed Earth Hour on Saturday March 31st, 2012 from 20:00-21:00.
Whups! The real Earth hour was from 20:30 to 21:30. Oh well.. we shut down everything we could, went out before 20:00 and came back in around 21:15.

This image is of the Kingston skydome (light pollution) around mid-earth-hour.. 21:00 or so. We took pictures before during and after. Again this year, there was no noticeable effect on the light pollution dome of Kingston.


On the other hand it was nice and clear and Venus came very close to the Pleiades star cluster while Jupiter was still close by.