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Mars Base

Europe's Billion-Star Mapping Spacecraft Snaps 1st Photo (Image) | Space.com - 0 views

www.space.com/-mapping-spacecraft-photo.html

scibyte120 ESA-Gaia

shared by Mars Base on 12 Feb 14 - No Cached
  • A new European spacecraft tasked with mapping a billion stars in the night sky  has beamed its first picture back to Earth.
  • its first test image
  • only covers an area less than 1 percent of Gaia's full field of view
  • ...12 more annotations...
  • Gaia launched into space on Dec. 19 and it will spend five years studying the precise positions, motions and properties of 1 billion stars in the Milky Way
  • goal of creating the most accurate 3D map to date of our home galaxy
  • Gaia has two telescopes that can stare out at two different patches of the sky simultaneously
  • Gaia's camera,
  • is the highest-resolution image sensor ever flown in space with about 1 billion pixels.
  • it will measure an average of 2 million stars per hour,
  • about 50 gigabytes of data each day.
  • Gaia will eventually compile more than million gigabytes of data
  • about 200,000 fully loaded DVDs
  • it will be able to capture all one billion of its targets during its first six months in operation
  • the spacecraft will measure each of its stars an average of 70 times throughout the course of its five-year mission
  • will measure physical characteristics of the stars, including their brightness, temperature and chemical makeup
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