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Monday, January 05, 2009


Happy Perihelion

Today Earth was at perihelion, its closest approach to the Sun (actually here in Australia it was perihelion occurred at around 3:00 am in the morning, I thought it felt hotter then). This is due to Earth's orbit being an elipse. There is a nice animation demonstrating perihelion and aphelion here, and a nice illustration of the difference in the size of the Sun at perihelion and aphelion here.

UPDATE: See the Bad Astronomers post on Perihelion, especially the comments where there is a nice table of the names for Perihelion for all the planets.


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