Kronberger 61距离地球大约13,000光年,是天鹅座的一名“成员”。它几近完美的球形;相较于其他3,000余行星星云,它可谓十分不同寻常。
Kronberger 61 lies roughly 13, 000 light-years away in the Cygnus constellation and is almost perfectly round-an oddity when compared with the other 3, 000 or so planetary nebulae already discovered.
暮色迅速降临,有—两颗星星已经出现了,而西方夕照的余霞依稀可见。
Twilight was coming on apace and a star or two was already out, but the remains of the sunset could still be seen in the west.
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