Best H Alpha
Sharpless 2-252, commonly called the Monkey Head Nebula, is an emission nebula and H II region located in the constellation Orion. It is an active star-forming region containing a massive embedded star cluster, and it is frequently imaged in the H-alpha wavelength to reveal its glowing hydrogen gas....
Sh2-132, commonly known as the Lion Nebula, is an extensive emission nebula located in the northern constellation of Cepheus. It is an H II region ionized by the radiation of several massive, hot stars, including notable Wolf-Rayet stars and stellar clusters. The nebula is a frequent target for astr...
IC 1795, commonly called the Fish Head Nebula, is an emission nebula and star-forming region in the constellation Cassiopeia. It lies adjacent to IC 1805, the Heart Nebula, within the larger complex of ionized gas and young stars associated with the Perseus spiral arm. Ultraviolet radiation from hot...
The Tulip Nebula, catalogued as Sharpless 2-101, is an emission nebula in the constellation Cygnus. Its glowing gas is ionized by radiation from nearby young, hot stars, and its curved outline gives the object its floral nickname in astronomical images. The nebula lies in the same region of the sky...
Sh2-101, commonly known as the Tulip Nebula, is an emission nebula located in the constellation Cygnus. It consists of ionized hydrogen gas that glows in visible light when energized by ultraviolet radiation from nearby hot stars, and it is associated with regions of star formation. Its popular name...
