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The inner planet has twice the mass of Jupiter and orbits the star every 453 days.

It lies about 50,000 light years from NGC 3169. Alpha Sextantis, Brightest Star in Sextans The brightest star in Sextans is Alpha Sextantis and is located about 37.54 light years from the Sun.
They provide clues into the history of the Universe and are believed to be the progenitors of modern Milky Way-type galaxies.HD 92788 is a class G5 star in Sextans. Or a sextant is an instrument used to measure the angle between any two visible objects. KornmesserThe galaxy is located either within the Local Group or just beyond it.Two giant extrasolar planets were discovered orbiting the star in July 2010. This suggests that the black hole in the center of NGC 3115 has a mass of about two billion times that of the Sun, supporting previous results from optical observations. Sextans (“the Sextant”) is an extremely faint southern hemisphere constellation that was created by the Polish astronomer Johannes Hevelius in 1687. The sky is not divided up equally between the constellations. α Sextantis (Alpha Sextantis) Alpha Sextantis is a white giant star with the stellar classification A0III. The star is believed to be about 2.8 billion years old. A version of this image was entered into the Hubble’s Hidden Treasures image processing competition by Luca Limatola. It has an apparent magnitude of 5.19 and is approximately 300 light years distant from the solar system.Sextans Constellation Map, by IAU and Sky&Telescope magazineNGC 3115 is the nearest galaxy with a billion-solar-mass black hole to Earth. MAJOR STARS IN SEXTANS. The alpha and beta stars of Sextans are right on the zero latitude line (zero declination) on the celestial equator. It also lies near the ecliptic, which causes the Moon, and some of the planets to occasionally pass through it for brief periods of time.

It was not one of the original constellations that had been devised by Ptolemy, instead it was created by Johannes Hevelius years later.You can't just go to one location and arrive at the constellation because the constellation is made up of stars at different locations and different distances. In this image UGC 5797 appears in front of a background of spiral galaxies. There are a few notable variable stars, including β, 25, 23 Sextantis, and LHS 292. The point sources in the X-ray image are mostly binary stars containing gas that is being pulled from a star to a stellar-mass black hole or a neutron star. The star is recognised as being the brightest in the constellation as it has the Bayer status of Alpha.You can decline to give a name which if that is the case, the comment will be attributed to a random star. The planet orbiting WASP-43, discovered on April 15, 2011, was the most closely orbiting hot Jupiter ever found at the time of discovery. The gravitational tug of war has warped the spiral shape of one galaxy, NGC 3169, and fragmented the dust lanes in its companion NGC 3166.

It is by far the brightest galaxy yet found in the early Universe and there is strong evidence that examples of the first generation of stars lurk within it. The galaxy’s nickname was inspired by the Portuguese footballer Cristiano Ronaldo, who is known as CR7.Sextans B, image: Hubble Space Telescope, NASAThe galaxy cluster CL J1001+0220 is the most distant galaxy cluster ever discovered and may have been caught right after birth, a brief, but important stage of cluster evolution never seen before.
It was discovered in 1990 by Michael Irwin, director of the Cambridge Astronomical Survey Unit and one of the discoverers of the Sagittarius Dwarf Elliptical Galaxy and the Cetus Dwarf.He originally named the constellation Sextans Uraniae after the instrument he had used to measure star positions until it was destroyed in a fire at his observatory in 1679.This view shows a section of the widest deep view of the sky ever taken using infrared light, with a total effective exposure time of 55 hours. It has a period of variability of around 15.4 days.The brightest star in the constellation is Alpha Sextantis, with an apparent magnitude of 4.49. Sextans as a constellation covers a rather dim, sparse region of the sky.