north america

north america

Annular Solar Eclipse of October 23rd, 2014 [Hinode/XRT]

21h ago
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Visit us at http://xrt.cfa.harvard.edu/ and view the original post (with additional links/images) at http://xrt.cfa.harvard.edu/xpow/20141024.html Observers across most of North America were treated to a solar eclipse just before sunset last night. The center of the Moon's shadow was cast over the Earth's north pole, so it was seen as only a partial eclipse from the ground . Hinode circles Earth in a polar orbit at an altitude of about 680 km, which put it directly into the center of the Moon's shadow for the annular eclipse shown here with images from XRT. Annular eclipses occur when the Moon passes directly between the observer and the Sun, but the apparent diameter of the Moon isn't quite large enough to block out the entire solar disk for a total eclipse. This was only the second annular eclipse observed by XRT. Click here for the first, and click here to browse other XRT eclipses. Questions and comments welcome at xrtpow "at" gmail "dot" com Hinode is a Japanese mission developed and launched by ISAS/JAXA, with NAOJ as domestic partner and NASA and STFC (UK) as international partners. It is operated by these agencies in co-operation with ESA and the NSC (Norway).