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The name Sagittarius A was first used in 1954 by John D. Kraus, Hsien-Ching Ko, and Sean Matt [6] when they included the object in the list of radio sources found with the Ohio State University radio telescope at 250 MHz. As was common practice at the time, sources were named by constellation with capital letters in order of brightness within ...
NGC 6559 is a star-forming region located at a distance of about 5000 light-years from Earth, in the constellation of Sagittarius, showing both emission (red) and reflection (blue) regions. In addition, several other nebulae have been located within Sagittarius and are of interest to astronomy.
Sagittarius A*, abbreviated as Sgr A* (/ ˈ s æ dʒ ˈ eɪ s t ɑːr / SADGE-AY-star [3]), is the supermassive black hole [4] [5] [6] at the Galactic Center of the Milky Way.Viewed from Earth, it is located near the border of the constellations Sagittarius and Scorpius, about 5.6° south of the ecliptic, [7] visually close to the Butterfly Cluster (M6) and Lambda Scorpii.
Pi Sagittarii (π Sagittarii, abbreviated Pi Sgr, π Sgr) is a triple star system in the zodiac constellation of Sagittarius.It has an apparent visual magnitude of +2.89, [2] bright enough to be readily seen with the naked eye.
Mu Sagittarii (μ Sagittarii, abbreviated Mu Sgr, μ Sgr) is a multiple star system in the constellation of Sagittarius. The brightest component, a blue supergiant designated Mu Sagittarii Aa, is formally named Polis / ˈ p ɒ l ɪ s /. [15] The system is 5,000 light-years from the Sun and is part of the Sgr OB1 stellar association.
The Spiritual Meaning of the Full Moon Each month, La Luna cycles through all eight lunar phases , setting the energetic tone for each day. The phases of the moon represent different stages in the ...
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Upsilon Sagittarii (Upsilon Sgr, υ Sagittarii, υ Sgr) is a spectroscopic binary star system in the constellation Sagittarius.Upsilon Sagittarii is the prototypical hydrogen-deficient binary (HdB), and one of only four such systems known.