Star map skyglobe10/27/2023 ![]() ![]() 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. ![]() It is based on predicted spacecraft pointings, which closely match the actual spacecraft pointings.įrom its orbit around the second Lagrange point (L2) of the Sun-Earth system, Planck performs a continuous scan of the sky. This animation shows the evolution of the sky coverage by Planck from August 2009 to August 2010. North/Cardiff University & NASA/WMAP Science Team (background image)
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