Hubble Captures an Image of Twin Jet Nebula
The Twin Jet Nebula, also known as PN M2-9, was discovered by the German-American astronomer Rudolph Minkowski in 1947. Ordinary planetary nebulae have one star at their center, bipolar nebulae like the Twin Jet Nebula have two. The two stars at the heart of the nebula circle one another roughly every 100 years.
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