Five Supernova Remnants Captured in Auriga Constellation

• Astronomers captured a composite image featuring five distinct supernova remnants in the constellation of Auriga.
• The image, taken at Oukaïmeden Observatory, required approximately 200 hours of observation time and covers an area equivalent to 1,000 full moons.

Identified Supernova Remnants

• The field displays the following remnants: G181.1+9.5, G182.4+4.3, G179.0+2.6, G180.0−1.7 (Sh2-240, or the Spaghetti Nebula), and G178.2−4.2.
• The image also includes the open cluster M37 and the Tadpole Nebula.

Scientific Context

• The remnants consist of expanding shells of gas heated by stellar explosions, displaying red hydrogen and blue oxygen filaments.
• These explosions occurred independently at varying distances up to several thousand light-years away.
• Estimated ages for these remnants span up to tens of thousands of years; ancient observers may have witnessed these events as bright "new stars" in the night sky.