In what year was 72P/Denning–Fujikawa discovered: 1874, 1881, 1882 or 1886?

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72P/Denning–Fujikawa is a periodic comet discovered on 4 October 1881 by William Frederick Denning.

Learn more on Codexery: 72P/Denning–Fujikawa in Named Comets

How many moons does Mars have?

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?