9 lines
688 B
Markdown
9 lines
688 B
Markdown
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name: 61 Cygni
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constellation: Cyg
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created_by: editor.cs
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created_date: 2023-11-05 16:46:21.626691
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updated_by: editor.cs
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updated_date: 2023-11-05 16:46:21.626695
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The inconspicuous binary star, distinguishable even with a smaller telescope, is known for being the first one to have its trigonometric parallax measured in 1838 - the distance of this celestial object was determined by the German astronomer Friedrich Wilhelm Bessel (who mainly worked in astrometry - he accurately measured the positions of over 50,000 stars and based on the analysis of their irregular proper motions, he predicted the presence of their long-invisible companions for both Sirius and Procyon in 1844). |