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发帖数: 1994 | 1 Pluto & Charon Eclipse a Triple Star
Credit: NACO Team, 8.2-meter VLT (Yepun), ESO
Explanation: Occasionally, a planet in our Solar System will pass in front of a bright star.
Since stars and planets take up so little space on the sky, such events are quite rare. Two
months ago, however, Pluto and its large moon Charon passed in front of a comparatively
bright triple star system known as P126. By noting how P126 A dimmed, the event was useful
for studying Pluto's relatively unknown |
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