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Xi 2 Sagittarii, Latinized from ξ 2 Sagittarii, is a star in the zodiac constellation of Sagittarius.Data collected during the Hipparcos mission suggests it is an astrometric binary, although nothing is known about the companion.
V4641 Sagittarii is a variable X-ray binary star system in the constellation Sagittarius.It is the source of one of the fastest superluminal jets in the Milky Way galaxy.. In 1999 a violent X-ray outburst revealed it to contain a black hole. [6]
9 Sgr is the brightest star in the image, just left of the intense Hourglass Nebula core of the Lagoon Nebula.The scattering of stars on the left is NGC 6530.. 9 Sgr is a naked eye star lying in the direction of the Lagoon Nebula (Messier 8), very close to the central condensation of the Hourglass Nebula around Herschel 36.
Nu 1 Sagittarii (ν 1 Sagittarii, abbreviated Nu 1 Sgr, ν 1 Sgr) is a triple star system [7] about 1,100 light-years from Earth.Its three components are designated Nu 1 Sagittarii A (officially named Ainalrami / ɛ n əl ˈ r eɪ m i /, the traditional name for the system), [8] B and C. [9] A and B themselves form a spectroscopic binary. [7]
A visual band light curve for V4375 Sagittarii, plotted from INTEGRAL Optical Monitoring Camera data [16]. HD 316285 is listed in the General Catalogue of Variable Stars as a variable Be star with a range of about one tenth of a magnitude. [17]
The first success of this technique was made in 2003 by both OGLE and MOA of the microlensing event OGLE 2003–BLG–235 (or MOA 2003–BLG–53). Combining their data, they found the most likely planet mass to be 1.5 times the mass of Jupiter. [49] As of April 2020, 89 exoplanets have been detected by this method. [50]
2MASS J18352154−3123385, often shortened to be 2MASS J1835, is a binary red dwarf system about 27 light-years from the Earth. It was first reported due to its high proper motion in 2010 by J. D. Kirkpatrick et al. [6] [7] It was then independently discovered from its X-ray radiation on June 10, 2015.
Rho 1 Sagittarii, Latinized from ρ 1 Sagittarii, is a single, [13] variable star in the southern constellation of Sagittarius.It has a white hue and is visible to the naked eye with an apparent visual magnitude that fluctuates around 3.93. [2]