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05:57 PM
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Why are we only seeing half the sun? Suggest pin for logical explanation
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[quote:Astromut:MV8xODIxMjY3XzMwMzI5NjkzXzQyODZDQ0Ux] [quote:DUCM900:MV8xODIxMjY3XzMwMzI5NTkxX0FFQ0UxMzk0] ROFTL http://farm6.static.flickr.com/5187/5582378439_b949e2df08.jpg So NASA did not describe one of this stuff since years. Interesting. [/quote] They've described the phenomenon in general, yes, but they don't announce every eclipse that happens, they happen all the time. Earth eclipses happen during eclipse season near the equinoxes. We're at the tail end of the current eclipse season right now. "Twice a year, SDO enters an eclipse season where the spacecraft slips behind Earth for up to 72 minutes a day. Unlike the crisp shadow one sees on the sun during a lunar eclipse, Earth's shadow has a variegated edge due to its atmosphere, which blocks the sun light to different degrees depending on its density. Also, light from brighter spots on the sun may make it through, which is why some solar features extend low into Earth's shadow." http://www.nasa.gov/mission_pages/sunearth/multimedia/032911-SDOspringeclipse.html [/quote]
Original Message
Just checked out Solar Dynamics Obs and most of the inages only show half the sun and the ones showing the full sun look weird! Anyone know what's going on?
[
link to sdo.gsfc.nasa.gov
]
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