Tom Megeath
Tom Megeath
examples time younger
Obviously, we can't go back in time and look at the Trapezium when it was still forming, so we try to find younger examples in the sky.
appear fades grand great home northern sky visible
The Grand Nebula in Cassiopeia will appear in our sky just as the Great Nebula in Orion fades away. Even better, its home constellation is visible year-round from much of the northern hemisphere.