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Hydra is the largest constellation, covering more than 1 ⁄ 32 of the night sky and 19 times the area of Crux, the smallest constellation. The International Astronomical Union (IAU) designates 88 constellations of stars.
1,301 ± 285 [10] L/T eff: Another red supergiant, Stephenson 2 DFK 1 has an estimated radius of 2,150 R ☉. However, it is potentially not a member of the Stephenson 2 cluster and also has a distance with an uncertainty of ≳50% due to it only being measured with radial velocities. [10] [22] Stephenson 2 DFK 49: 1,300 ± 283 [10] L/T eff
IAU designated constellations in equirectangular projection (epoch B1875.0) In contemporary astronomy, 88 constellations are recognized by the International Astronomical Union (IAU). [1] Each constellation is a region of the sky bordered by arcs of right ascension and declination, together covering the entire celestial sphere. Their boundaries ...
Saturn has been a popular planet for stargazers this month as it reached its peak brightness on Aug. 14, but astronomy fans' attention will shift to another easy-to-spot planet later this week.
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Based on a view from Earth, one may look towards major constellations for a rough sense of where the borders of the quadrants are: [5] (Note: by drawing a line through the following, one can also approximate the galactic equator.) For 0°, look towards the Sagittarius constellation. (The galactic center) For 90°, look towards the Cygnus ...
Satellite mega-constellations could harm the atmosphere, say scientists calling for more research. Elon Musk , whose Starlink satellite constellation is the biggest, wields power in the new Trump ...
The formation of constellations was the subject of extensive mythology, most notably in the Metamorphoses of the Latin poet Ovid. Constellations in the far southern sky were added from the 15th century until the mid-18th century when European explorers began traveling to the Southern Hemisphere. Due to Roman and European transmission, each ...