Best Sagittarius
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The Lagoon Nebula, also known as Messier 8, is a vast emission nebula located within the constellation Sagittarius. This region exhibits intense star formation due to abundant ionized hydrogen (H II) gas. Observed since 1654 by Giovanni Hodierna, it’s particularly notable for its active star-forming...
The Swan Nebula, designated Messier 17 (M17), is a massive emission nebula and star-forming region located in the constellation Sagittarius. Often referred to as the Omega Nebula or the Horseshoe Nebula, it was discovered by Philippe Loys de Cheseaux in 1745 and cataloged by Charles Messier in 1764....
The Omega Nebula, also known as Messier 17, is a vast emission nebula located within the Sagittarius constellation. Discovered in 1745, it’s notable for its intense star formation activity centered around a young, energetic star cluster. Astronomers and those studying stellar nurseries find this obj...
The Trifid Nebula, formally Messier 20, is a star-forming region within the Sagittarius constellation. It’s notable for exhibiting a complex blend of emission, reflection, and dark nebula characteristics all visible within a single object. This makes it an excellent target for amateur astronomers an...
The Lagoon Nebula, formally Messier Object 8, is a vast emission nebula situated in the constellation Sagittarius approximately 4,100 light-years distant. It’s notable as one of the few star-forming regions readily visible to observers without telescopes from the Northern Hemisphere. This active neb...
The Trifid Nebula, also known as M20, is a stunning emission nebula located in the Sagittarius constellation. It’s notable for its distinctive trilobed structure formed by intense star formation. These three distinct regions are delineated by dark dust lanes, revealing the processes of stellar birth...
The Red Spider Nebula, formally designated NGC 6537, is a bipolar planetary nebula located within the Sagittarius constellation. It’s notable for containing one of the hottest known white dwarf stars at its center. This stellar remnant, formed from a dying star, emits intense ultraviolet radiation c...
The Pistol Star is a massive, highly luminous blue hypergiant star located near the center of the Milky Way galaxy within the Quintuplet Cluster. Hidden behind thick clouds of interstellar dust, it was first observed in detail by astronomers in the early 1990s using infrared imaging technology. The...
The Omega Nebula (Messier 17) is a vast emission nebula located approximately 5,500 light-years from Earth in the Sagittarius constellation. It’s notable for its dramatic, swirling appearance formed by intense star formation within a massive hydrogen ionization region (HII). This active star-forming...
WR 104 is a Wolf-Rayet star located roughly 7,800 light-years away in the constellation Sagittarius. It forms a spectroscopic binary with an OB companion, and the system is surrounded by a rotating pinwheel-shaped dust nebula imaged at infrared wavelengths. The orbital geometry has led researchers t...
WR 102 is a rare oxygen-sequence Wolf-Rayet star, classified WO2, in the constellation Sagittarius. Its spectrum is dominated by highly ionized oxygen, carbon, and helium produced in an extremely hot, dense stellar wind, and model estimates place its surface temperature above 200,000 kelvins. It is...
The Tornado Nebula is a complex supernova remnant in the Milky Way galaxy, notable for its swirling, funnel-like shape that resembles a terrestrial tornado.
Kaus Australis, designated Epsilon Sagittarii, is a blue-white giant star situated roughly 143 light-years away from Earth. It is the brightest star in the zodiacal constellation of Sagittarius and serves as a key reference point in southern celestial navigation. The star's traditional name is a lin...
The Peony Star, formally designated as WR 102ka, is a massive Wolf-Rayet star situated in close proximity to the center of the Milky Way galaxy. It is distinguished by its extreme luminosity, estimated to be approximately 3.2 million times that of the Sun, placing it among the most luminous stars cu...
LBV 1806-20 is a luminous blue variable star located near the center of the Milky Way galaxy. It resides in a dense star-forming cluster that also contains a soft gamma repeater, a type of highly magnetic neutron star. When identified, it was considered one of the most luminous stars known in the ga...
Nunki is the traditional name of Sigma Sagittarii, a prominent star in the constellation Sagittarius. It is a hot, blue-white B-type main-sequence star located roughly 228 light-years from Earth and forms part of the Teapot asterism. Nunki is the second-brightest star in Sagittarius by apparent magn...
The Ink Spot Nebula, catalogued as Barnard 86, is a compact dark nebula in the constellation Sagittarius. Its dense interstellar dust obscures the crowded stellar background of the Milky Way, creating a sharply defined dark silhouette beside the open star cluster NGC 6520. The contrasting pair lies...
Barnard 92 is a dark nebula in the constellation Sagittarius, visible against the bright star field of the Small Sagittarius Star Cloud, which forms part of Messier 24. It consists of interstellar dust that blocks light from the dense background of Milky Way stars, producing a conspicuous dark patch...
Ross 154 is a red dwarf star situated approximately 9.7 light-years from the Sun in the southern zodiac constellation of Sagittarius. It is classified as an M-type flare star, meaning it undergoes sudden, dramatic increases in luminosity due to intense magnetic activity on its surface. The star was...
Gomez's Hamburger, cataloged as IRAS 18059-3211, is a peculiar nebula that visually resembles a sandwich due to its thick lane of dust sandwiched between two glowing regions. It was discovered in 1985 by Chilean astronomer Arturo Gomez at the Cerro Tololo Inter-American Observatory. The object is ac...
NGC 6559 is an emission and reflection nebula in the constellation Sagittarius, situated near the larger and more prominent Lagoon Nebula (M8). The region combines red hydrogen-alpha emission from ionized gas with blue reflection from starlight scattered by interstellar dust grains, creating a visua...
Ascella, designated Zeta Sagittarii, is a binary star system located in the constellation Sagittarius. It is one of the brighter members of the prominent Teapot asterism, marking the lower southern edge of the formation. The system's primary star is a white main-sequence star, accompanied by a faint...
NGC 6589 is a blue reflection nebula located in the constellation Sagittarius. It was discovered by American astronomer Truman Henry Safford in 1883. The nebula is illuminated by the light of nearby stars, which scatters off the surrounding interstellar dust to create its distinct blue appearance. I...
Barnard 93 is a dark nebula in the constellation Sagittarius, projected against the dense stellar field of the Small Sagittarius Star Cloud within Messier 24. It appears as a dark patch because foreground interstellar dust absorbs and scatters visible light from the more distant stars behind it. Cat...
NGC 6445 is a planetary nebula in the constellation Sagittarius, commonly called the Little Gem Nebula or Box Nebula. William Herschel discovered it in 1786, and its structured, angular appearance reflects a bipolar outflow rather than a simple spherical shell. It lies in a crowded region of the Mil...
Barnard 86, commonly called the Ink Spot Nebula, is a compact dark nebula in the constellation Sagittarius. Dense interstellar dust blocks the light of background stars, creating a sharply defined dark silhouette against one of the Milky Way's crowded stellar fields. It lies beside the open cluster...
NGC 6537, commonly called the Red Spider Nebula, is a bipolar planetary nebula in the constellation Sagittarius. It contains an exceptionally hot central star, with estimates exceeding 300,000 kelvin, surrounded by gas expelled during the star's late evolutionary stages. Fast stellar winds interact...
