In what year was IC 184 discovered: 1887, 1891, 1892 or 1898?

How many moons does Mars have?

Which planet is known as the Red Planet?

In what year was Array of Low Energy X-ray Imaging Sensors launched: 1974, 1983, 1993 or 1999?

In what year was 13P/Olbers discovered: 1811, 1812, 1815 or 1823?

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

In which constellation is HD 131496 located: Eridanus, Carinae, Boötes or Ursa Minor?