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Balloon-based telescopes
Greetings all non-loonies,
I have just been reading a small piece about the SUNRISE balloon-based 1m telescope. What it didn't tell me, and what I find puzzling, is how to stabilise a balloon at 40 kilometres altitude to make it useful for observing the sun? Regards Alan |
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Balloon-based telescopes
Alan Johnson wrote:
Greetings all non-loonies, I have just been reading a small piece about the SUNRISE balloon-based 1m telescope. What it didn't tell me, and what I find puzzling, is how to stabilise a balloon at 40 kilometres altitude to make it useful for observing the sun? It's done by wavefront correlation in the image. So instead of stabilizing the balloon or the telescope, they are going to use something similar to image-stabilization in camcorders. For details see the following links: http://www.kwasan.kyoto-u.ac.jp/sola...21_Solanki.pdf http://www.vmebus-systems.com/column...fs/04.2005.pdf http://www.iac.es/proyect/IMaX/Publi...USproposal.doc The last one is actually the proposal to NASA from the PIs (principle investigators) for US support. In the proposal, they explain the stabilization solution in detail. -- // The TimeLord says: // Pogo 2.0 = We have met the aliens, and they are us! |
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