Who discovered NGC 7213: Édouard Stephan, Albert Marth, John Herschel or Fritz Zwicky?

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NGC 7213 is a lenticular galaxy in the constellation Grus, roughly 70 million light-years from Earth and spanning about 75,000 light-years.

Learn more on Codexery: NGC 7213 in Elliptical and Lenticular Galaxies

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Which planet is known as the Red Planet?

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?

In which constellation is R Aquarii located: Andromeda, Apus, Antlia or Aquarius?

In which constellation is NGC 5679 Group located: Corona Borealis, Phoenix, Virgo or Leo?