Wednesday, April 11, 2012
Globe at Night Light Pollution Survey for April 11-20
Globe at Night, the international light pollution survey, is running its forth survey this year from April 11-20. Visit their website for easy to follow instructions and charts to estimate how dark your sky is.
Basically, an hour or so after sunset (8-10 pm) head out, look to the north to find Leo, (if you are in the northern hemisphere) or south to find Crux (for us southern hemisphere types) or Orion (for everybody, but it's getting a bit low) then check how many stars are visible, and report your observations. It's a great excuse to get outdoors and look at the sky. You might even see the International Space Station or an Iridium flare.
This year you can submit your results a smart phone or tablet. To do this, you can use the web application at www.globeatnight.org/webapp/. Globe at Night is also on Facebook and Twitter.