660 B
660 B
name | constellation | created_by | created_date | updated_by | updated_date |
---|---|---|---|---|---|
61 Cygni | Cyg | 8mag | 2022-01-21 17:00:00 | skybber | 2022-01-27 17:53:41.993397 |
this inconspicuous binary star, recognizable even with a smaller telescope, is famous for being the first to have its trigonometric parallax measured in 1838 - the distance of this constellation was determined by the German astronomer Friedrich Wilhelm Bessel (he worked mainly in astrometry - he measured precisely the positions of over 50,000 stars and predicted the presence of their long-invisible guides in 1844 on the basis of an analysis of the irregular proper motion of the magnitude and Procyon).