9 lines
507 B
Markdown
9 lines
507 B
Markdown
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name: η Aquilae
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constellation: Aql
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created_by: 8mag
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created_date: 2022-01-21 17:00:00
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updated_by: skybber
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updated_date: 2022-01-21 17:24:34.785146
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The brightest Cepheid in the sky, 1,000 light years away, lies 8 degrees south of Altair. Changes in the brightness of this supergiant are easily perceived with the naked eye. In 7 days and 4 hours, its brightness fluctuates regularly between 3.7mag and 4.4mag. It is useful to compare its brightness variations with θ, δ (3mag) and λ (4mag) stars. |