9 lines
755 B
Markdown
9 lines
755 B
Markdown
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name: U Cep
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constellation: Cep
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created_by: editor.cs
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created_date: 2023-11-05 17:31:13.107784
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updated_by: editor.cs
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updated_date: 2023-11-05 17:31:13.107790
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The interesting short-period variable star. The brighter B-type component is eclipsed by a larger, but fainter G-type giant every 2.5 days. It changes in brightness from 6.7 mag to 9.2 mag, with a four-hour descent to minimum followed by two hours of total eclipse. Due to the close true separation, the brighter component pulls a significant amount of mass from the outer layer of the faint giant, resulting in a shortening of the orbital period by 4 minutes over the past century. The nearby third component appears to be part of the system as well, but it does not orbit along this path. |