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Home > Art, Film & Photography > Weier Zwerg: Sirius, Ik Pegasi, Hm Cancri, Schwarzer Zwerg, Keid, Chandrasekhar-Grenze, Prokyon, Sdss J142625.71]575218.3, Bpm 37093
Weier Zwerg: Sirius, Ik Pegasi, Hm Cancri, Schwarzer Zwerg, Keid, Chandrasekhar-Grenze, Prokyon, Sdss J142625.71]575218.3, Bpm 37093

Weier Zwerg: Sirius, Ik Pegasi, Hm Cancri, Schwarzer Zwerg, Keid, Chandrasekhar-Grenze, Prokyon, Sdss J142625.71]575218.3, Bpm 37093


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Kapitel: Sirius, Ik Pegasi, Hm Cancri, Schwarzer Zwerg, Keid, Chandrasekhar-Grenze, Prokyon, Sdss J142625.71]575218.3, Bpm 37093, Kpd 0005+5106. Aus Wikipedia. Nicht dargestellt. Auszug: Sirius is the brightest star in the night sky. With a visual apparent magnitude of 1.46, it is almost twice as bright as Canopus, the next brightest star. The name "Sirius" is derived from the Ancient Greek Seirios ("scorcher"). The star has the Bayer designation Alpha Canis Majoris ( CMa). What the naked eye perceives as a single star is actually a binary star system, consisting of a white main sequence star of spectral type A1V, termed Sirius A, and a faint white dwarf companion of spectral type DA2, termed Sirius B. The distance separating Sirius A from its companion varies between 8.1 and 31.5 AU. Sirius appears bright because of both its intrinsic luminosity and its proximity to Earth. At a distance of 2.6 parsecs (8.6 ly), the Sirius system is one of Earth's near neighbors. Sirius A is about twice as massive as the Sun and has an absolute visual magnitude of 1.42. It is 25 times more luminous than the Sun but has a significantly lower luminosity than other bright stars such as Canopus or Rigel. The system is between 200 and years old. It was originally composed of two bright bluish stars. The more massive of these, Sirius B, consumed its resources and became a red giant before shedding its outer layers and collapsing into its current state as a white dwarf around years ago. Sirius is also known colloquially as the "Dog Star," reflecting its prominence in its constellation, Canis Major (Big Dog). The heliacal rising of Sirius marked the flooding of the Nile in Ancient Egypt and the "Dog Days" of summer for the Ancient Greeks, while to the Polynesians it marked winter and was an important star for navigation around the Pacific Ocean. Hieroglyph ofSirius/Sopdet Sirius, known in Ancient Egypt as Sopdet (Greek: Sothis), is recorded in...http: //booksllc.net/?l=de


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Product Details
  • ISBN-13: 9781159342500
  • Publisher: Books LLC
  • Publisher Imprint: Books LLC
  • Height: 152 mm
  • No of Pages: 86
  • Spine Width: 5 mm
  • Weight: 136 gr
  • ISBN-10: 1159342504
  • Publisher Date: 22 Jul 2010
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Sub Title: Sirius, Ik Pegasi, Hm Cancri, Schwarzer Zwerg, Keid, Chandrasekhar-Grenze, Prokyon, Sdss J142625.71]575218.3, Bpm 37093
  • Width: 229 mm


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