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发帖数: 1994 | 1 A Tale of Two Nebulae
Credit & Copyright: Brian Lula
Explanation: This colorful telescopic view towards the northern constellation Lyra reveals
dim outer regions around M57, popularly known as the Ring Nebula. While modern
astronomers still refer to M57 as a planetary nebula, at one light-year across M57 is not a
planet but the gaseous shroud of a dying sun-like star. Roughly the same apparent size as M57,
the fainter, often overlooked barred spiral galaxy IC1296 is at the l |
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