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How big is 剑鱼座 R?

410,000,000 千米!

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剑鱼座 R

R Doradus 相当大而且距离地球也只有 200 光年, 因此看起来是天上第二大的恒星! 有 0.05 角秒大. 而太阳是最大的, 有 1920 角秒, 整整是 40000 倍大.

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宇宙的刻度 > 剑鱼座 R

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