Best H Ii

NGC 6188 is an emission nebula located within the Ara constellation. It’s recognized for its intricate dust structures, sculpted by ultraviolet light emanating from the nearby NGC 6193 star cluster. This nebula actively forms stars and is of interest to amateur astronomers and researchers studying s...

HTV-1, also designated Kounotori 1, was the inaugural flight of the H-II Transfer Vehicle, an uncrewed cargo spacecraft developed by the Japan Aerospace Exploration Agency (JAXA). It launched on an H-IIB rocket on September 11, 2009, from the Tanegashima Space Center, delivering supplies to the Inte...

NGC 3576 is an emission nebula located within the Carina Nebula cluster. It’s notable for its prominent, pillar-like structures of dust and gas, illuminated by intense ultraviolet radiation from young, hot stars. These formations are actively involved in star formation. Astronomers and researchers s...

NGC 2174 is an emission nebula within the Orion constellation. It’s notable for its distinctive resemblance to a primate's head, created by dense clouds of hydrogen gas ionized by young, hot stars. This region is actively forming new stars and is primarily observed by astronomers studying star forma...

Messier 43 is an emission nebula located within the Orion constellation. It’s notable for being a relatively isolated star-forming region, distinct from the larger Orion Nebula. The nebula contains abundant hydrogen-II gas, indicating active star formation. Astronomers and amateur observers study it...

Sharpless 2-157 is an emission nebula located within the Cassiopeia constellation. Identified by astronomer Stewart Sharpless as part of his 1959 survey of star-forming regions, it’s notable for its strong hydrogen-alpha (HII) emission lines. These lines reveal intense star formation activity within...

The Ghost Head Nebula, designated NGC 2080, is an emission nebula and star-forming region in the Large Magellanic Cloud, a satellite galaxy of the Milky Way. It lies within the broader 30 Doradus complex and contains young, massive stars whose radiation ionizes surrounding gas and makes it glow. Two...

The Running Chicken Nebula, formally designated IC 2944, is an open star cluster with emission nebulosity located in the constellation Centaurus. The H II region is recognized for its distinctive shape, which resembles a running chicken, and serves as an active star-forming area. Astronomers study i...

NGC 2014 is a massive emission nebula situated in the Large Magellanic Cloud. It is characterized by its reddish glow, which results from the ionization of hydrogen gas by young, hot stars embedded within the cloud. The nebula is frequently observed alongside the neighboring blue emission nebula NGC...

Sharpless 2-112 is an HII emission nebula located in the constellation Cygnus, cataloged by American astronomer Stewart Sharpless in his 1959 survey of galactic nebulae. As a star-forming region, its ionized hydrogen gas emits a distinct red glow when energized by nearby massive, hot stars. The nebu...

Sharpless 2-235 is a massive star-forming region and emission nebula located in the constellation Auriga. It was officially documented by astronomer Stewart Sharpless in his landmark 1959 catalog of HII regions, which mapped ionized hydrogen clouds across the Milky Way. The nebula's illumination is...

IC 2948, commonly referred to as the Lambda Centauri Nebula or the Running Chicken Nebula, is a bright emission cloud located in the constellation Centaurus. It is an H II region ionized by the radiation from nearby hot stars, creating a distinct reddish glow. The nebula is highly notable among astr...

NGC 371 is an open star cluster associated with an emission nebula, located within the Small Magellanic Cloud, a dwarf galaxy orbiting the Milky Way. The cluster is notable for containing a high concentration of massive, variable supergiant stars, which actively contribute to the surrounding H II re...

NGC 2467, commonly known as the Skull and Crossbones Nebula, is an H II region and active star-forming area in the constellation Puppis. First recorded by William Herschel in 1784, this emission nebula contains young, hot stars that illuminate the surrounding gas clouds. The nebula's distinctive app...

Sharpless 2-297 is an H II emission nebula located in the constellation Canis Major. It was cataloged by the American astronomer Stewart Sharpless in his 1959 survey of H II regions, which identified distinct clouds of ionized gas. The nebula appears red in astrophotography due to the emission of li...

NGC 2467 is an active star-forming region located in the southern constellation of Puppis. The nebula consists of bright emission clouds interspersed with dark dust lanes, creating an appearance that has led to its unofficial nickname, the Skull and Crossbones. It serves as a rich area for astronomi...

NGC 248 is an emission nebula and star-forming region in the Small Magellanic Cloud, a dwarf satellite galaxy of the Milky Way. It contains glowing hydrogen gas ionized by radiation from young, massive stars and is classified as an H II region. Scottish astronomer James Dunlop recorded the object in...

Sharpless 2-263 is a diffuse emission nebula included in the Sharpless catalogue, a systematic survey of HII regions in the Milky Way published by astronomer Stewart Sharpless in 1959. The catalogue compiled over 300 ionized hydrogen clouds visible from the northern sky, providing a standardized ref...

Sharpless 2-1 is an emission nebula cataloged by American astronomer Stewart Sharpless in his 1959 HII region survey of the Milky Way galaxy.

NGC 1714 is an emission nebula located within the Large Magellanic Cloud, a prominent satellite galaxy of the Milky Way. Scottish astronomer James Dunlop first observed it in 1826 from Australia, cataloging it in his astronomical records. The nebula features regions of ionized hydrogen gas illuminat...

The Bubble Nebula in Barnard's Galaxy is a massive H II region located within the irregular dwarf galaxy NGC 6822, which was discovered by E. E. Barnard in 1884.

N41 is an emission nebula located in the Large Magellanic Cloud, originally cataloged by American astronomer Karl Henize in his 1956 survey.

DWB 20 is a faint emission nebula in the Cygnus X complex, cataloged by astronomers Dickel, Wendker, and Bieritz during their 1969 radio survey.

NGC 1715 is an emission nebula in the Large Magellanic Cloud that is notable for its distinct, bubble-like appearance, historically categorized by John Herschel in 1834.

NGC 249 is a diffuse emission nebula situated within the Small Magellanic Cloud, notable for being studied extensively by the Hubble Space Telescope to map cosmic dust.

DWB 169 is a galactic emission nebula in the Cygnus X star-forming region, identified in the 1969 DWB radio continuum survey of the Milky Way.

DWB 175 is a notable HII region within the Cygnus X complex, first cataloged by Dickel, Wendker, and Bieritz in their comprehensive 1969 survey.

NGC 256 is an open star cluster located in the Small Magellanic Cloud within the constellation Tucana, which was first cataloged by British astronomer John Herschel in 1834.

NGC 261 is an extensive emission nebula located in the Small Magellanic Cloud, a dwarf galaxy roughly 200,000 light-years away from Earth in the constellation Tucana.