The banner constellation of Northern Hemisphere winter evenings is certainly Orion. The pattern, dominated by bright stars and three in a neat row right in the middle, is unmistakable.Orion and the Big Dipper are easily the most well-known star patterns north of the equator (the Big Dipper being the brightest portion of a larger constellation, Ursa Major the Big Bear).Around 10 p.m. on mid-January evenings, Orion is highest in the south. The Big Dipper is directly opposite in the north, and at