Hydrogen, Oxygen and other good stuff...
The predominant emissions and discharges of gas like here from the "Eastern Veil nebula" consist primarily of Hydrogen-Alpha, Sulfur-II and Oxygen III. These components emit light in very specific wavelengths which can pass through a special filter where all other light is blocked. In this way, the beautiful colors and structures from the gas clouds are captured.
Horsehead nebula, the horse's head in the Orion constellation. The ionizing Hydrogen gas Ha II is particularly striking, which is clearly seen in the picture. Distance is approximately 1500 light years.
Ring Nebula, a planetary nebula in the constellation Lyra, the fantastic colors of gas and dust are formed after a star has released most of its energy in an explosion. Distance to Earth: 2,283 light years, Radius: 1.3 light years, Age: 7,005 years.
Eastern Veil nebula
The Pillars of Creation
Eagle Nebula or M16, 6500 light years from us here on Earth. The heart of this emission nebula contains the well-known image from the Hubble telescope "Pillars of Creation", a very striking formation of dust and gas that has similarly shaped the earth we live on and the universe that surround us.
Eagle nebula M16 seen from Copenhagen 2022
Horsehead and Flame Nebulae
Rosette Nebula, distance to Earth, 5,219 light years, radius: 65 light years.
The jewel in the sword
The Orion Nebula M42 consists of stars as well as gas and dust. The nebula can be found in the constellation Orion 1,470 light years from Earth
IC 1805 or Heart nebula is an emission nebula, 7500 light years in the constellation Cassiopeia.
The very beautiful "Dumbbell Nebula" also called Messier 27 or NGC 6853, is a planetary nebula - May 2022, Copenhagen