Evening sky in December 2006

Planet Venus is the brightest object in the night sky after the Moon, and therefore very easy to identify. It alternates, with a 19-month cycle, from being visible in the evening sky (after sunset) to being visible in the morning sky (before sunrise). It has recently returned to the evening sky and is now very prominent above the western horizon during early evening. Although its physical size makes it a 'sister' planet to the Earth, one could scarcely imagine a more hostile climate: Surrounded by dense white clouds with an atmospheric pressure 90 times greater than Earth's, 'runaway' global warming has taken temperatures up to some 500 degrees Celsius.

Looking in the opposite direction - over the eastern horizon - the constellation of Orion (with its distinctive line of three stars) has Taurus (with Hyades and Pleiades star clusters) to its left and Canis Major (with Sirius, the brightest star in the night sky) to its right.

The Moon is in the evening sky until December 5 and again after December 22.