Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  NGC 4151  ·  NGC 4156
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NGC 4151 (Eye of Sauron), KuriousGeorge
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NGC 4151 (Eye of Sauron)

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NGC 4151 (Eye of Sauron), KuriousGeorge
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NGC 4151 (Eye of Sauron)

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Description

NGC 4151 is an intermediate spiral Seyfert galaxy with weak inner ring structure located 19 megaparsecs (62 million light-years) from Earth in the constellation Canes Venatici. The galaxy was first mentioned by William Herschel on March 17, 1787. It is one of the nearest galaxies to Earth to contain an actively growing supermassive black hole. It was speculated that the nucleus may host a binary black hole, with about 40 million and about 10 million solar masses respectively, orbiting with a 15.8-year period. This is, however, still a matter of active debate.

Some astronomers nickname it the "Eye of Sauron" from its appearance.

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  • NGC 4151 (Eye of Sauron), KuriousGeorge
    Original
  • Final
    NGC 4151 (Eye of Sauron), KuriousGeorge
    B

B

Description: Finally, after almost a month, got a few clear nights to add HaRGB.

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NGC 4151 (Eye of Sauron), KuriousGeorge