Helix Nebula

The Helix Nebula, also known as NGC 7293, is a planetary nebula (PN) located in the constellation Aquarius. Discovered by Karl Ludwig Harding, probably before 1824, this object is one of the closest to the Earth of all the bright planetary nebulae.[5] The distance, measured by the Gaia mission, is 655±13 light-years[6]. It is similar in appearance to the Cat’s Eye Nebula and the Ring Nebula, whose size, age, and physical… Continue reading Helix Nebula

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NGC 6820

NGC 6820 is a small reflection nebula near the open cluster NGC 6823 in Vulpecula. The reflection nebula and cluster are embedded in a large faint emission nebula called Sh 2-86. The whole area of nebulosity is often referred to as NGC 6820.[3]

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Whirlpool Galaxy M51

“Whirlpool Galaxy” The Whirlpool Galaxy, also known as Messier 51a, M51a, and NGC 5194, is an interacting grand-design spiral galaxy with a Seyfert 2 active galactic nucleus.[7][6][8] It lies in the constellation Canes Venatici,and was the first galaxy to be classified as a spiral galaxy.[9] Its distance is estimated to be 23 millionlight-years away from Earth.The galaxy and its companion, NGC 5195,[10] are easily observed by amateur astronomers, and the two galaxies… Continue reading Whirlpool Galaxy M51

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Categorized as Galaxies