HD 139357 B

HD 139357 B

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. HD 139357 b is an extrasolar planet located approximately 396 light years away in the constellation of Draco, orbiting the 6th magnitude K-type giant star HD 139357. It has a minimum mass very massive, at nearly 10 times that of Jupiter, but its radius is unknown (probably no more than 1.2 Jupiters). This planet is probably most likely be a brown dwarf if true mass were to be known. The reason why true mass is unknown is due to its unknown inclination. Follow up observations via direct imaging may determine its radius, hence density and surface gravity, and inclination to allow it to determine whether this object actually be a brown dwarf or a supermassive planet.show more

Product details

  • Paperback | 132 pages
  • 152 x 229 x 8mm | 204g
  • Cel Publishing
  • United States
  • English
  • black & white illustrations
  • 6136696533
  • 9786136696539