Astronomical Calendar 2012 Author:Guy Ottewell Whether it's the path of the Moon's shadow across the Earth, the conjunctions of Mercury and Venus or the configurations of Jupiter's Galilean moons that interest you, the 2012 Astronomical Calendar has what you need to make the most of your stargazing opportunities. Now in its 39th year, this essential resource guides you to a staggering array ... more »of astronomical events throughout the year.« less