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Planck Mission animations:
Mapping the Cosmic Microwave Background with Planck [2008 version]
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- Title Planck Mission animations - Mapping the Cosmic Microwave Background with Planck [2008 version]
- Length 00:00:00
- Footage Type TV Exchanges
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- Copyright ESA
- Description
This animation shows ESA's Planck observatory scanning the sky and completing its first all-sky survey.
From its orbit around the second Lagrange point (L2) of the Sun-Earth system, Planck performs a continuous scan of the sky. The spacecraft spins at 1 rpm causing the telescope's field-of-view, which is inclined at 85° to the spin axis, to trace out approximate great circles on the celestial sphere. Planck's spin axis is periodically shifted by a few arcminutes per hour in ecliptic longitude (adding up to ~1° per day), to maintain an anti-Sun pointing throughout the year. As a result, the annular region observed with the telescope slowly drifts across the sky, resulting in a complete sky survey.
Version from July 2008.
©ESA - European Space Agency
Scanning the microwave sky with Planck
07 July 2008
1080p TRT 01’21’’
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