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Alpha Centauri (α Centauri, α Cen, or Alpha Cen) is a triple star system in the southern constellation of Centaurus. It consists of three stars: Rigil Kentaurus (α Centauri A), Toliman (α Centauri B), and Proxima Centauri (α Centauri C). [14] Proxima Centauri is the closest star to the Sun at 4.2465 light-years (1.3020 pc).
Saturn is named after the Roman god of wealth and agriculture, who was the father of the god Jupiter.Its astronomical symbol has been traced back to the Greek Oxyrhynchus Papyri, where it can be seen to be a Greek kappa-rho ligature with a horizontal stroke, as an abbreviation for Κρονος (), the Greek name for the planet (). [35]
Red dwarf systems. K-type main-sequence star systems. Yellow dwarf systems. F-type main-sequence star systems. v. t. e. The following list includes some of the potentially habitable exoplanets discovered so far. It is mostly based on estimates of habitability by the Habitable Worlds Catalog (HWC), and data from the NASA Exoplanet Archive.
Planets beyond Neptune. Following the discovery of the planet Neptune in 1846, there was considerable speculation that another planet might exist beyond its orbit. The search began in the mid-19th century and continued at the start of the 20th with Percival Lowell 's quest for Planet X. Lowell proposed the Planet X hypothesis to explain ...
High, medium, and low projections of the future human world population [1] In world demographics, the world population is the total number of humans currently alive. It was estimated by the United Nations to have exceeded eight billion in mid-November 2022. It took around 300,000 years of human prehistory and history for the human population to ...
Six defeats Weaver, and Rex is taken to Purgatory Base, located on a remote desert island in the South Pacific, to offload the remainder of his nanites. As Rex walks off to explore the island with Bobo, Six and Holiday privately discuss Rex's nature. 7. 7. "Leader of the Pack". Sam Montes. Alexx Van Dyne. June 4, 2010.
edit. Potassium (. 19K) has 25 known isotopes from 34. K to 57. K as well as 31. K, as well as an unconfirmed report of 59. K. [3] Three of those isotopes occur naturally: the two stable forms 39. K (93.3%) and 41. K (6.7%), and a very long-lived radioisotope 40.
The 1977 Silver Jubilee and Birthday Honours were announced on 11 June 1977 to celebrate Queen Elizabeth II's Silver Jubilee and Birthday in the United Kingdom, [1] Canada, [2] Australia, [3] New Zealand, [4] Barbados, [5] Mauritius, [6] Fiji, [7] the Bahamas, [8] Grenada, [9] and Papua New Guinea.