Our Milky Way galaxy is about ~100,000 light-years across, making it on the big side for spiral galaxies. But the biggest known spiral galaxy is UGC 2885 (Rubin’s Galaxy), which may be up to 800,000 light-years wide!
Image Credit: NASA, ESA, B. Holwerda (U. of Louisville)
Our Milky Way galaxy is about ~100,000 light-years across, making it on the big side for spiral galaxies. But the biggest known spiral galaxy is UGC 2885 (Rubin’s Galaxy), which may be up to 800,000 light-years wide!
Image Credit: NASA, ESA, B. Holwerda (U. of Louisville)