9 lines
463 B
Markdown
9 lines
463 B
Markdown
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name: δ Cygni
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constellation: Cyg
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created_by: editor.cs
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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: 2022-01-27 17:51:06.031621
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a binary star, the magnitudes of the components are 2.9 and 6.3, their separation is 2.4" and their distance from Earth is 124ly. It is a good test for a 10-15 cm telescope. The main component is reported by observers as white, pale blue or even blue-green, the minor component appears pale blue to blue. |