Trifid Nebula A view of the M20 Trifid Nebula, or NGC6514, taken by the Space Surveillance Telescope. Approximately 5,000 light years away from Earth, the nebula is near the outer limits of objects bright enough visible to the naked eye. DoD photo SHARE: Download: Full Size (0.86 MB) Tags: Space Surveillance Telescope, Trifid Nebula Credit: DoD photo VIRIN: 161022-D-ZZ999-001.JPG Photo Gallery