description Cleopatra's Eye Nebula Overview
Cleopatra's Eye Nebula, formally designated as NGC 1535, is a planetary nebula located in the constellation Eridanus. It was discovered by the astronomer William Herschel in 1785 and consists of an expanding shell of glowing ionized gas ejected from an aging central star. The nebula features a complex internal structure with a bright inner shell and a fainter outer halo, which astronomers often compare to the Eskimo Nebula. It is a frequent target for amateur astronomers because its luminous core can be resolved with moderate-aperture telescopes.
help Cleopatra's Eye Nebula FAQ
Why is NGC 1535 called the Cleopatra's Eye Nebula?
Its bright central region surrounded by a roughly circular shell gives the planetary nebula an eye-like appearance. NGC 1535 lies in the constellation Eridanus and is not associated with the historical Cleopatra.
Who discovered Cleopatra's Eye Nebula?
William Herschel discovered NGC 1535 on February 1, 1785. The object is a planetary nebula formed from material expelled by an aging star, not a planet or galaxy.
What kind of object is NGC 1535?
It is a planetary nebula, meaning an expanding shell of ionized gas around a hot stellar remnant. The name describes its appearance and historical classification, not the presence of planets.
Can Cleopatra's Eye Nebula be seen with a small telescope?
NGC 1535 is a compact planetary nebula in Eridanus, so a small telescope may show it as a small disk-like object rather than a detailed colorful image. Larger apertures and filters reveal more of the surrounding shell and central star.
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