Close up: The Orion Nebula (M42)—Visible Spectrum | Subaru Telescope FriendsofNASA.org: The Orion Nebula (M42), located in the winter constellation Orion, is known as a star-forming region located relatively close to Earth, approximately 1,500 light-years away. Its large apparent size makes it easy to find with the naked eye, and a large number of stars can be seen through a telescope. At the center of the red nebula seen in high-mass star-forming regions is the Trapezium, a cluster of newly for

[Understanding Old Lenses from Scratch] Easy Getting Started: [Mount Adapters and M42]