In what year was NGC 6109 discovered: 1836, 1864, 1880 or 1888?

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NGC 6109 is a lenticular galaxy and a LINER galaxy situated in the constellation Corona Borealis, approximately 487 million light-years from Earth.

Learn more on Codexery: NGC 6109 in Elliptical and Lenticular Galaxies

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In which constellation is Robert's Quartet located: Phoenix, Draco, Grus or Corona Borealis?

In what year was NGC 7213 discovered: 1786, 1834, 1836 or 1864?

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