In what year was 47 Ursae Majoris b discovered: 1996, 2001, 2004 or 2009?

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47 Ursae Majoris b (formally named Taphao Thong) is a gas giant exoplanet approximately 46 light-years from Earth in the constellation Ursa Major.

Learn more on Codexery: 47 Ursae Majoris B in Exoplanets Found by Radial Velocity

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?