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.

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。

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The Cygnus Loop appears as a faint ring of glowing gases about three degrees across (six times the diameter of the full moon), located in the northern constellation Cygnus the Swan.

天鹅座的Loop看起来是个由炽热气体形成的模糊光环(满月直径的6倍大小)，坐落在天鹅座星群的北方。

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Explanation: Delicate in appearance, these filaments of shocked, glowing gas, draped in planet Earth's sky toward the constellation of Cygnus, make up the Veil Nebula.

解释：从地球仰望星空，笼罩在天鹅座周围的那些外观精美、如细丝般令人震撼的发光气体，形成了面纱星云。

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On Wednesday, Dr. Welsh and his colleagues announced that they have confirmed the existence of two more worlds in distinctive double-star solar systems in the constellation Cygnus.

WSJ: Galaxy Hosts 100 Billion Planets, in New Estimate

On Wednesday, Dr. Welsh and his colleagues announced that they have confirmed the existence of two more alien planets in distinctive double-star solar systems in the constellation Cygnus.

WSJ: Galaxy Hosts 100 Billion Planets, in New Estimate

Herschel will be remembered as the telescope that produced great vistas of gas and dust, as here in the constellation of Cygnus.

BBC: Herschel space telescope to go blind