STEP 1 · SET OBSERVING LOCATION

Where will you observe?

Your location tells us what is above the horizon and when. Choose a place before calculating the sky.

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Epsilon Lyrae (Double Double)

Epsilon Lyrae (Double Double)

Double star · Lyr

Set observing location to calculate altitude, timing and practical visibility. This guide describes the object in general.

The "Double Double" — a wide pair that any small scope splits easily, but each of those two stars is itself a close pair again, separated by only about 2.4″. Seeing that second split takes 80 mm or more of aperture and a genuinely steady night.

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