Deep-Sky Dreams: Emission nebula IC 1396

One of the largest emission nebulae in the far northern sky can be found in IC 1396, a bright glow in Cepheus that contains several complex objects. Among them are the red supergiant star Mu Cephei; the double stars Struve 2816 and Struve 2819; the dark nebula van den Bergh 142, known as the ElephantContinue reading “Deep-Sky Dreams: Emission nebula IC 1396”
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