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In 2016, the International Astronomical Union (IAU) organized a Working Group on Star Names (WGSN) [2] to catalog and standardize proper names for stars. The WGSN's first bulletin, dated July 2016, [3] included a table of 125 stars comprising the first two batches of names approved by the WGSN (on 30 June and 20 July 2016) together with names of stars adopted by the IAU Executive Committee ...
In this map of the Observable Universe, objects appear enlarged to show their shape. From left to right celestial bodies are arranged according to their proximity to the Earth. This horizontal (distance to Earth) scale is logarithmic.
Most things visible to the naked eye in the sky are part of it, including the Milky Way composing the Zone of Avoidance. [12] Large Magellanic Cloud: 0.9 160 kly (49 kpc) Dorado/Mensa: Visible only from the southern hemisphere. It is also the brightest patch of nebulosity in the sky. [12] [13] [14] Small Magellanic Cloud (NGC 292) 2.7 200 kly ...
Second-brightest star in the night sky with a multiplanetary system after 7 Canis Majoris. All exoplanets orbit around star A in the binary system. 47 Ursae Majoris: Ursa Major: 10 h 59 m 27.97 s +40° 25′ 48.9″ 5.10: 46: G0V: 1.029: 5892: 7.434: 3: Planet Taphao Thong was discovered in 1996 and was one of the first exoplanets to be ...
It takes all the colors of the rainbow for us to see it that way. It happens because of something called the Rayleigh effect, or Rayleigh scattering, named after a British scientist who first ...
The physical universe is defined as all of space and time [a] (collectively referred to as spacetime) and their contents. [10] Such contents comprise all of energy in its various forms, including electromagnetic radiation and matter, and therefore planets, moons, stars, galaxies, and the contents of intergalactic space.
Many people have seen a rainbow arch across the sky, creating a ribbon of colors as rain falls nearby, but few have seen two at once. Rainbows appear when sunlight is reflected by raindrops ...
Second brightest star in the night sky. Gacrux (γ Crucis) 73 [97] L/T eff: Twenty-sixth brightest star in the night sky. Polaris (α Ursae Minoris) 46.27 ± 0.42 [98] AD The current star in the North Pole. It is a Classical Cepheid variable, and the brightest example of its class. Aldebaran (α Tauri) 45.1 ± 0.1 [99] AD Fourteenth brightest ...