IC 342 Galaxy
IC 342, also known as Caldwell 5, is a spiral galaxy that earns its nickname as "the Hidden Galaxy" because it hides behind the thick gas, dust, and stars of our Milky Way's plane. Located about 10 million light years away, IC 342 belongs to the IC 342/Maffei group of galaxies, making it one of the closest galaxy groups to our own Local Group. This nearby spiral galaxy matters to astronomers because it displays young, bright stars and offers important clues about how spiral galaxies form. Magnetic field studies of IC 342 are particularly valuable for understanding one of astronomy's biggest puzzles: the mechanism behind the formation of spiral arms in galaxies.
Sources
- science.nasa.gov: “IC 342 (or Caldwell 5) is one of the brightest members of the IC 342/Maffei group of galaxies. Located about 10 million light years away, this group is quite close to the Local Group that includes our Milky Way.”
- science.nasa.gov: “IC 342 has its own dust intermittently blocking the glow of hydrogen gas, indicating the presence of bright, young stars. Magnetic field maps of IC 342 reveal that magnetic fields may contribute substantially to one of the biggest galactic puzzles: how do spiral arms form?”
- science.nasa.gov: “Today's image peers through the plane of the Milky Way, through all its gas, dust and stars, to unveil this spiral galaxy.”