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Virtual Observatories and Data Interfaces for Atmospheric Science

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Last Week

Last Week. Celestial Co-ordinates Measurements of Distance to add to Surface Temperature and Mass Locally we can use Stellar parallax. To go to greater distances we need to use measurements of brightness. 1AU. Star. Stellar Parallax. Tan p = p =1AU / d 1 radian = 2.063 x 10 6 seconds

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