Sadr (Gamma [γ] Cygni) holds a key location in the Cygnus part of the Milky Way, which stretches high overhead after sunset this month. The star marks not only the northern edge of the rich Cygnus Star Cloud but also the headwaters of the bleak black river known as the Great Rift — a massive series of obscuring dust clouds in the plane of our galaxy. Gamma Cyg, in other words, lies at a yin-yang junction of stunning naked-eye features. But the surrounding region also has a couple subtle yin-yang telescopic wonders, two of which I describe here.
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