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by | Mar 16, 2018 | Hosta

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NGC 4991 is a spiral galaxy in the constellation of Virgo.[1][2] It is located 835 million light-years from the Solar System. NGC 4991 was first discovered on April 30, 1864 by German astronomer, Albert Marth.[3] It is considered as a radio galaxy by the SIMBAD database.[4] It has an active galactic nucleus and contains high amounts of ionized hydrogen.[2]

References

  1. ^ "NGC 4991 - Barred Spiral Galaxy in Virgo | TheSkyLive.com". theskylive.com. Retrieved 2024-04-18.
  2. ^ a b "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-04-18.
  3. ^ "New General Catalog Objects: NGC 4950 - 4999". cseligman.com. Retrieved 2024-04-18.
  4. ^ "NGC 4991". simbad.u-strasbg.fr. Retrieved 2024-04-18.
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