Mercury (planet) at a steep angle. Mercury is 10° above the horizon when the planet appears directly above the Sun (i.e. its orbit appears vertical) and is at maximum elongation from the Sun (28°) and also when the Sun is 18° below the horizon, so the sky is just completely dark. This angle is the maximum altitude at which Mercury is visible in a completely dark sky. At middle latitudes, Mercury is more often and easily visible from the Southern Hemisphere than from the Northern. This is because Mercury's maximum western elongation occurs only during early autumn in the Southern Hemisphere, whereas
Planet Heroes Christmas 2009 prices on Amazon.com for Planet Heroes toys have shot up for all characters. The most difficult toys to find are Voice Comm. Sun Commander and Voice Comm Tiny Asteroid. Neither of which are for sale on any internet website. The original Pluto Shiver toy is the next most difficult to find, which goes for over $50 on eBay or Amazon. The Fisher Price Website currently has Planet Heroes Voice Comm toys on sale for $7.99. The vast majority of original figures and metallic squad characters are not available from the Fisher Price Store. Planet Heroes Planet Heroes is