http://www.google.com/images?q=orion+nebula+m42 The Orion Nebula, which can be seen with the naked eye as a "star" in the
asterism of Orion the Hunter (it is the middle of the three objects making up Orion's "sword"; the other two, flanking it, are real stars), is one of the most photographed sky objects. From the photographs shown on the page linked above, you can see why.