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

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R Aquarii, also designated R Aqr, is a variable star located in the constellation Aquarius.

How many moons does Mars have?

Which planet is known as the Red Planet?

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

Which company developed "Barotrauma": Archer Maclean, Striking Distance Studios, Insomniac Games or Undertow Games?

In what year was BioSentinel launched: 2008, 2011, 2020 or 2022?

In which constellation is 3C 351 located: Serpens, Taurus, Draco or Canes Venatici?