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Billion dollar observatory will map the Milky Way



 
 
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  #1  
Old December 27th 13, 03:00 AM posted to sci.astro,sci.physics
Yousuf Khan[_2_]
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Default Billion dollar observatory will map the Milky Way

Billion dollar observatory will map the Milky Way
http://why.knovel.com/all-engineerin...milky-way.html

Gaia, which has been built by space engineering firm Astrium for the European Space Agency, is projected to have a five-year lifespan and is the successor to the ESA's Hipparcos satellite, a data gatherer until its retirement in 1993. The observatory is also expected to add to the information that has been transmitted by the Hubble Space Telescope, with a primary objective being the hunt for exoplanets beyond the borders of the known solar system.


  #2  
Old December 27th 13, 03:10 AM posted to sci.astro,sci.physics
Sam Wormley[_2_]
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Default Billion dollar observatory will map the Milky Way

On 12/26/13, 8:00 PM, Yousuf Khan wrote:
Billion dollar observatory will map the Milky Way
http://why.knovel.com/all-engineerin...milky-way.html


Gaia, which has been built by space engineering firm Astrium for the
European Space Agency, is projected to have a five-year lifespan and
is the successor to the ESA's Hipparcos satellite, a data gatherer
until its retirement in 1993. The observatory is also expected to add
to the information that has been transmitted by the Hubble Space
Telescope, with a primary objective being the hunt for exoplanets
beyond the borders of the known solar system.



Similar to the Kepler Space Telescope who's primary objective was
also being the hunt for exoplanets beyond the borders of the known
solar system.
  #3  
Old December 27th 13, 07:57 AM posted to sci.astro,sci.physics
Yousuf Khan[_2_]
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Posts: 1,692
Default Billion dollar observatory will map the Milky Way

On 26/12/2013 9:10 PM, Sam Wormley wrote:
On 12/26/13, 8:00 PM, Yousuf Khan wrote:
Billion dollar observatory will map the Milky Way
http://why.knovel.com/all-engineerin...milky-way.html



Gaia, which has been built by space engineering firm Astrium for the
European Space Agency, is projected to have a five-year lifespan and
is the successor to the ESA's Hipparcos satellite, a data gatherer
until its retirement in 1993. The observatory is also expected to add
to the information that has been transmitted by the Hubble Space
Telescope, with a primary objective being the hunt for exoplanets
beyond the borders of the known solar system.



Similar to the Kepler Space Telescope who's primary objective was
also being the hunt for exoplanets beyond the borders of the known
solar system.


Not really, the primary function of this telescope is to find the
precise distances and speed of many of the stars in the Milky Way, not
exoplanet hunting.

Yousuf Khan
  #4  
Old December 27th 13, 12:59 PM posted to sci.astro,sci.physics
Mike Dworetsky
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Posts: 715
Default Billion dollar observatory will map the Milky Way

Yousuf Khan wrote:
On 26/12/2013 9:10 PM, Sam Wormley wrote:
On 12/26/13, 8:00 PM, Yousuf Khan wrote:
Billion dollar observatory will map the Milky Way
http://why.knovel.com/all-engineerin...milky-way.html



Gaia, which has been built by space engineering firm Astrium for
the European Space Agency, is projected to have a five-year
lifespan and is the successor to the ESA's Hipparcos satellite, a
data gatherer until its retirement in 1993. The observatory is
also expected to add to the information that has been transmitted
by the Hubble Space Telescope, with a primary objective being the
hunt for exoplanets beyond the borders of the known solar system.


Similar to the Kepler Space Telescope who's primary objective was
also being the hunt for exoplanets beyond the borders of the
known solar system.


Not really, the primary function of this telescope is to find the
precise distances and speed of many of the stars in the Milky Way, not
exoplanet hunting.

Yousuf Khan


True, but with the high precision measurements over an extended period of
time, Gaia will be able to find planets by the astrometric method, rather
than the doppler or transit methods. The results will be independent of the
inclination of the systems. Press officers think that looking for planets
is much sexier to the general public. Gaia will be able to map the Milky
Way Galaxy to distances of order 10,000 parsecs. Hipparcos was limited by
its precision to distances of a few hundred parsecs with any precision.

--
Mike Dworetsky

(Remove pants sp*mbl*ck to reply)

 




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