Owl Nebula
Encyclopedia : O : OW : OWL : Owl Nebula
| Planetary nebula | |
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| Other designations
| M97, NGC 3587
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|} The Owl Nebula (also known as Messier Object 97 or NGC 3587) is a planetary nebula in the constellation Ursa Major. It was discovered by Pierre Méchain in 1781. M97 is regarded as one of the more complex of the planetaries. The 16th magnitude central star has about 0.7 solar masses and the nebula itself about 0.15 solar masses. The nebula formed roughly 6,000 years ago. External links
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