Trifid Nebula M20 Adam Block
The Trifid Nebula is approximately 5000 ly away from Earth. Its apparent magnitude is 6. 3. It was the subject of an investigation by astronomers using the Hubble Space Telescope in 1997, using filters that isolate emission from hydrogen atoms, ionized sulfur atoms, and doubly ionized oxygen atoms. The images were combined into a false-color composite picture to suggest how the nebula might look to the eye. The close-up images show a dense cloud of dust and gas, which is a stellar nursery full of embryonic stars. This cloud is about 8 ly away from the nebula’s central star. A stellar jet protrudes from the head of the cloud and is about 0. 75 ly long. The jet’s source is a young stellar object deep within the cloud. Jets are the exhaust gasses of star formation and radiation from the nebula’s central star makes the jet glow.