Hubbles Variable Nebula
Hubble's variable nebula is named (like the Hubble telescope itself) after the American astronomer Edwin P. Hubble, who carried out some ofthe early studies of this object. It is a fan-shaped cloud of gas and dust which is illuminated by R Monocerotis (R Mon), the bright star at the bottom end of the nebula.

Photo By: NASA, ESA and The Hubble Heritage Team
Photo License: NASA - ESA