NGC 6520 is an open star cluster with an apparent magnitude of 9.0. Sagittarius constellation map by IAU and Sky&Telescope magazine. The cluster is one of six globulars discovered by the French-Armenian astronomer Agop Terzan in 1968. The Trifid Nebula is about 28 arcminutes across in size. Messier 28, based on observations made with the NASA/ESA Hubble Space Telescope, and obtained from the Hubble Legacy Archive, which is a collaboration between the Space Telescope Science Institute (STScI/NASA), the Space Telescope European Coordinating Facility (ST-ECF/ESA) and the Canadian Astronomy Data Centre (CADC/NRC/CSA). Ferraro. The centaur is depicted as aiming an arrow toward the heart of the neighbouring constellation Scorpio, represented by the red supergiant star Antares. In Greek mythology, Sagittarius represents a centaur, a half human, half horse creature with the torso of a man and the body and four legs of a horse. Before that, Mercury occulted the star on December 5, 1865. Astronomers have nicknamed it the Garden-sprinkler Nebula due to its appearance. The Box Nebula, catalogued as NGC 6445, is a planetary nebula with a visual magnitude of 11.2. The centaur is depicted as aiming an arrow toward the heart of the neighbouring constellation Scorpio, represented by the red supergiant star Antares. Sagittarius History, Mythology and Predictions - The Astrology Zodiac Signs Its name means divided into three lobes. V4641 Sagittarii is the fourth known microquasar, discovered after four of the fastest X-ray intensity changes ever seen from a star. Sagittarius Mythology - CrystalWind.ca | Compendium of Mythology It is one of the closest stars to the Sun and the nearest star in Sagittarius constellation. It has a diameter of about 20 kilometres and its rotation speed at the surface is 30,000 km/h. The several star forming regions that make up W31 are located at different distances, but appear together in the sky because they lie in the same line of sight when observed from Earth. Sigma and Tau Sagittarii mark the handle, Delta, Epsilon, Zeta and Phi Sagittarii form the body of the Teapot, Lambda Sagittarii marks the point of the lid and Gamma-2 Sagittarii marks the tip of the spout. The Carina-Sagittarius Arm is particularly notable for containing a large number of H II regions, giant molecular clouds and young stars. The star is classified as a semiregular variable of the SRc type. The Sagittarius Dwarf Galaxy is an old galaxy, composed mainly of Population II stars (old, metal-poor stars). The Mythology That Defines Each One of the 12 Zodiac Signs - Astrology.com The planetary nebula in the Sagittarius Cluster, designated GJJC1 is believed to be only 6,000 years old and has a blue star at the centre. These are pulsating stars belonging to the spectral class A (and occasionally F), usually with a mass of about half the Suns, used as standard candles to measure galactic distances. Chiron was immortal, so he could not die. Astronomers obtained this portrait of Barnards Galaxy using the Wide Field Imager attached to the 2.2-metre MPG/ESO telescope at ESOs La Silla Observatory in northern Chile. It is good to remember the reason why Sagittarius is a centaur in the first place. The cluster occupies an area of 2 of apparent sky. The brightest companion star is an F class dwarf with an apparent magnitude of 7.77. The cluster has an apparent magnitude of 9.5. The Greek Origin of Zodiac Signs in Astrology - GreekReporter.com This cosmic pair is set against millions of glowing stars from the brightest part of the Milky Way a region so dense with stars that barely any dark sky is seen across the picture.This part of the constellation of Sagittarius (The Archer) is one of the richest star fields in the whole sky the Large Sagittarius Star Cloud. In mythology, Centaurs were hard drinkers, unreliable, misleading, crude, wild, and adulterous. It is the most highly magnetized object ever discovered. The name is derived from the astronomical constellation Sagittarius, meaning "archer" in Latin. It occupies an area of 867 square degrees. Other similar ripples of heated matter thrown out by feisty young stars are dotted across Barnards Galaxy. Peony Star has an estimated mass of about 100 solar masses and a radius 92 times solar. Ruprecht 147, also catalogued as NGC 6774, is a dispersed open cluster in Sagittarius. It is believed to be about 32 million years old. The signal was received by SETI researcher Dr. Jerry R. Ehman on August 15, 1977 at the Ohio State University. Sagittarius belongs to the Zodiac family of constellations, along with Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpius, Capricornus, Aquarius and Pisces. The Arches Cluster is the densest open cluster known in the Milky Way. The cluster was discovered by Charles Messier in 1778. The clusters NGC 6522 and NGC 6528. At the bottom centre is a rather unremarkable smudge of red which is in fact a rare and valuable object. Most likely, the primary component is an A type supergiant. The numbers 1806-20 indicate its position in the sky (right ascension and declination). It was discovered by the French astronomer Pierre Mchain in 1780. This beautiful image features the globular star cluster M75. It is less that 3 million years old, but it has shed a lot of its initial mass and is expected to end its life in a supernova or hypernova event in the next few million years.