A Backyard Astronomer's Diary 9 - Angular Measurement and Observing Epsilon Lyrae
Update: 2023-08-17
Description
Epsilon Lyrae is a double star system, often referred to as the Double-Double. When observed with the naked eye, it appears as a single point of light. However, with binoculars or a small telescope, you can see that Epsilon Lyrae is composed of at least two distinct stars, Epsilon 1 and Epsilon 2. If you have a telescope with 100mm aperture or more, you may be able to see that this is not merely a pair of stairs but a pair of two very closely spaced pairs of stars.
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