411 YEARS AGO

People always think it's close to impossible to do a bit of planet-gazing in Hong Kong (due to the large amounts of light pollution from the city), but it's almost always possible to see the "Big Three" (the Moon, Saturn, and Jupiter) when they are out on a cloudless night. I set up the telescope yesterday and managed to capture these images through the eyepiece with my shaky handheld mobile phone. It was 411 years ago when Galileo first saw the four biggest moons of Jupiter!