Let us admit that Cygni, Tauri, and others, are stars of the second magnitude, such as are here to be considered. |
|
The distance to a star was first announced in 1838 when the parallax of 61 Cygni was measured by Friedrich Bessel. |
|
That celestial object, a blue supergiant called P Cygni, lies some 6,000 light-years from Earth in the constellation Cygnus and is about 30 times as massives as the sun. |
|