Deep-Sky Dreams: Sharpless 2–157

As we’ve seen in recent posts, the northern constellation Cassiopeia is chock-full of intriguing nebulae and bright star clusters. A large and relatively bright emission nebula among this group, Sharpless 2–157, is rarely observed by amateur astronomers. It is sometimes called the Lobster Claw Nebula due to its distinctive shape.  This big nebula lies inContinue reading “Deep-Sky Dreams: Sharpless 2–157”
The post Deep-Sky Dreams: Sharpless 2–157 appeared first on Astronomy Magazine.