We're back into a period where the moon sets early enough to allow moon-free observations of the sky brightness in the evening. This can be done using either the Loss of the Night app (Android) or Dark Sky Meter app (iPhone). The moon-free observing period will last until November 7 (exact dates depend on your latitude).
After November 7, the next observing periods this year will be:
November 21 - December 6
December 20 - January 4 (2014)
The dates are based on Berlin sun/moon rise/set times, and will be
slightly different depending on where you live and what time of night
you intend to make your observation.
Please try to make observations especially in urban areas with lots of
light pollution, and please encourage your friends in urban areas to do
If the weather co-operates, we are going to hold two "Flashmob for Science" events next week as part of the ALAN conference.
October 28, 19:30-19:45 in Mendelssohn-Bartholdy-Park, Kreuzberg
October 29, 18:49-19:00 in Kaiser-Wilhelm-Platz (U3 Podbielskiallee), Dahlem
More information to come soon...