Nebulae
| Gamma Cygnus Complex |
| Gamma Cassiopeiae Nebula |
| Pacman Nebula in H-alpha |
| NGC 2070, Tarantula Nebula |
| Flaming Star Nebula, IC405 |
These are huge clouds of gas and dust which are illuminated by nearby stars. Many of the structures
shown here are light years across. There are two general types of nebulae, emission and reflection. In the
former, light is absorbed by a gas, usually hydrogen, and re-emitted as a longer wavelength of light. In the
case of hydrogen, the re-emitted light is red. There is a huge amount of hydrogen in the universe and
most nebulae have a red cast. Reflection nebulae are usually a shade of blue and are formed when star
light is reflected off of dust.
Click on the image of interest to see a larger version.
shown here are light years across. There are two general types of nebulae, emission and reflection. In the
former, light is absorbed by a gas, usually hydrogen, and re-emitted as a longer wavelength of light. In the
case of hydrogen, the re-emitted light is red. There is a huge amount of hydrogen in the universe and
most nebulae have a red cast. Reflection nebulae are usually a shade of blue and are formed when star
light is reflected off of dust.
Click on the image of interest to see a larger version.
| Cone Nebula Area in color |
| IC 1795, the Bear Nebula (hydrogen-alpha |
| The Horse Head and Flame Nebula (hydrogen-alpha) |
| IC 1871 (hydrogen-alpha) |
| NGC3372, Great Nebula in Carina |
| NGC2174, the Monkey Nebula, Hydorgen-alpha |
| IC443, The Jelly Fish Nebula, Hydorgen-alpha |
| IC410, Tadpole Nebula, Hydrogen-alpha |