Changes between Version 4 and Version 5 of TBR/UserApp/Space/GAIA


Ignore:
Timestamp:
Nov 29, 2012, 2:37:02 AM (7 years ago)
Author:
Mat
Comment:

Legend:

Unmodified
Added
Removed
Modified
  • TBR/UserApp/Space/GAIA

    v4 v5  
    1414
    1515
    16 ESA's pervious Hipparcos mission exceeded all expectations, cataloguing more than 100 000 stars to high precision, and more than a million to lesser precision. Hipparcos was so sensitive that it could have measured the diameter of a human hair at a distance of 20 km. Now that technology has improved, it is time for another mission with similar cataloguing aims as Hipparcos but with a much more ambitious payback.
     16ESA's pervious Hipparcos mission cataloged more than 100 000 stars to high precision, and more than a million stars to lesser precision. Since the Hipparcos mission, technology has greatly improved and the successor mission, Gaia will provide with similar cataloguing aims as Hipparcos but with a much more ambitious payback.
    1717The Gaia mission was proposed in October 1993 by Lennart Lindegren (Lund University, Sweden) and Michael Perryman (European Space Agency) in response to a call for proposals for ESA's Horizon Plus long-term scientific programme. Gaia was approved in 2000 as an ESA Cornerstone mission, and will be launched in 2013.The B2 phase of the project was authorized on 9 February 2006, with EADS Astrium taking responsibility for the hardware.
    1818