Lace swan. It is the poetic name that Astronomy scientistsAstronomy scientists Give what remains of the supernova that appeared in our sky about 20 thousand years ago. Diameter of this remainingremaining Located around 1500 Light yearLight year Earth is now 120 light-years across and continues to expand.
Herschel swan lace at Hubble
The Swan Lace was first observed in 1784 by the German-British astronomer William HerschelWilliam Herschel And its “modest” 18-inch telescope. Today, thanks to the Hubble Space Telescope, astronomers have been able to zoom in on this remnant SupernovaSupernova.
A supernova continues to expand
They reveal, on the edge of the Dentelles du Cygne, the area where the shock wave from an explosion occurreda stara star In a supernova it sinks in ThemeTheme The surrounding area, a structure reminiscent of the wrinkles in bed sheets. The wrinkles extend across the images for about 2 light-years. And travel through space without slowing down for at least 20 years at an astonishing speed – for us, not necessarily for a supernova – more than half a million kilometers per hour.