The James Webb Space Telescope photographed the Ring Nebula in the constellation Lyra. Reports of the central star dying are: quite an understatement. Natural scientist Christian Mähr devotes himself to the phenomenon in more detail.
The star in question is not dying, it has been dead for a very long time, about 20,000 years. It then sheds its outer gas shell and with it much of its mass. However, a nice piece of mass remained, which lies as a so-called ‘white dwarf’ in the center of the Ring Nebula. White: Because it shines so brightly, its surface is 20,000 degrees hot (our sun’s is only 6,000 degrees). Dwarf: It’s quite small for a star. For comparison, the Sun is about 1.4 million kilometers in diameter, the dwarf star in the Ring Nebula has only a few thousand, so it is about the size of Earth, but contains an entire solar mass or even more.
Source: Krone
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