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Science & Technology
iow_20100914 - Gaia
Image of the Week |
Delivery of Gaia's two large mirrors: M1 and M'1 |
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Gaia contains two identical telescopes, pointing in two directions separated by a 106.5° basic angle and merged into a common path at the exit pupil. The optical path of both telescopes is composed of six reflectors (M1-M6), the last two of which are common (M5-M6). M1 is the primary mirror of each telescope. It is a rectangular off-axis mirror (concave surface) of dimension 1.490m x 0.540m. After final acceptance, M1 has been delivered to the EADS Astrium facilities in Toulouse by Safran-Sagem on the 3rd September 2010. There it will be integrated onto the torus. You can find more information on the Science and Technology website. Picture: courtesy of ESA / EADS Astrium / Safran - Sagem [Published: 14/09/2010] |
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Image of the Week Archive
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