Nebula
The Horsehead Nebula, also known as Barnard 33
Horsehead Nebula, also known as Barnard 33, is a dark nebula located in the constellation Orion. It sits within the emission nebula IC 434, which is illuminated by the nearby star Sigma Orionis. The distinctive shape of the Horsehead Nebula resembles that of a horse's head, hence its name.
The Lion Nebula
The Lion Nebula, also known as Sharpless 132 (Sh2-132), is a bright emission nebula located in the constellation Cepheus. It's a region of active star formation, characterized by the presence of young, hot stars that emit intense ultraviolet radiation. This radiation ionizes the surrounding hydrogen gas, causing it to glow in the characteristic red color of hydrogen-alpha emission.