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The Owl Nebula (also known as Messier 97, M97 or NGC 3587) is a planetary nebula approximately 2,030 light years away in the constellation Ursa Major. [2] Estimated to be about 8,000 years old, [ 6 ] it is approximately circular in cross-section with a faint internal structure.
Owl Nebula: M97: NGC 3587: 1781 2.6 (approx.) 9.9 Ursa Major: Twin Jet Nebula or Butterfly Nebula M2-9: 1947 2.1 14.7 Ophiuchus: NGC 7026: 1873 5.6 10.0 Cygnus: Butterfly Nebula: NGC 2346: 1802 3.9 (approx.) 11.9 Monoceros: Abell 39: 1955 6.8 (approx.) 13.7 Hercules: Jones-Emberson 1 / Headphone Nebula: PK 164+31.1 1939 1.6 (approx.) 14.0 Lynx ...
The bright planetary nebula Owl Nebula (M97) can be found along the bottom of the bowl of the Big Dipper. M81 is a nearly face-on spiral galaxy 11.8 million light-years from Earth. Like most spiral galaxies, it has a core made up of old stars, with arms filled with young stars and nebulae.
emission line nebula The size is likely larger. The paper only describes the maximal distance to the nucleus and not the entire size. nebula around the Teacup galaxy: 363,000 ly (111,000 pc) [20] ionized nebula part of the circumgalactic medium around the Teacup galaxy, illuminated by the AGN: Lyman-alpha blob 1: 300,000 ly (92,000 pc) [21] LαB
“We have discovered that next step on a pathway to life.” This mosaic image of asteroid Bennu, was taken on December 2, 2018 by the OSIRIS-REx spacecraft from a range of 15 miles.
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The yellow dots show the position uncertainty of asteroid 2024 YR4 when it encounters Earth in 2032, based on observations up to January 31, 2025.