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通信遅延

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The yellow shell indicating one light-day distance from the Sun compares in size with the positions of Voyager 1 and Pioneer 10 as of 2008 (red and green arrows respectively). It is larger than the heliosphere's termination shock (blue shell) but smaller than Comet Hale-Bopp's orbit (faint orange ellipse below). Click on the image for a larger view and links to other scales.

光秒（Light-second）とは？宇宙と通信の距離を測る究極の単位

光秒光速天文学通信遅延
2026年8月11日続きを読む →