9 lines
668 B
Markdown
9 lines
668 B
Markdown
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name: Gemma (α CrB)
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constellation: CrB
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created_by: editor.cs
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created_date: 2023-11-07 09:14:55.976592
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updated_by: editor.cs
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updated_date: 2023-11-07 09:14:55.976596
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---
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Latin "drahokam". Occasionally, the Arabic name Alphecca (bowl) is used. The blue-white star with a magnitude of 2.3 is located 75 light-years away and is 45 times more luminous than the Sun. It cannot be observed with the naked eye, but it is an eclipsing variable star. Its brightness changes by 0.1 magnitude over a period of 17.36 days. It moves in the same direction as a group of stars mainly from the Big Dipper, known as the "bear stream". This group also includes Sirius, for example. |