Question 1

True or false: SGR 1806-20 is the most magnetic object ever detected in the universe.

Accepted Answer

True. Its magnetic field is over 10^15 Gauss, trillions of times stronger than Earth's, making it the most magnetic known object.

Question 2

True or false: SGR 1806-20 is located in the Milky Way galaxy, about 50,000 light-years from Earth.

Accepted Answer

True. It resides in the constellation Sagittarius, near the galactic center, roughly 50,000 light-years away.

Question 3

True or false: SGR 1806-20 is a type of neutron star that spins once every few milliseconds.

Accepted Answer

False. It spins once every 7.5 seconds, not milliseconds—much slower than typical pulsars.

Question 4

True or false: SGR 1806-20 was first discovered in 1979 by the Vela satellite.

Accepted Answer

False. It was discovered in 1993 by the Compton Gamma Ray Observatory, not 1979.

Question 5

True or false: The 2004 flare from SGR 1806-20 affected Earth's ionosphere, disrupting radio communications.

Accepted Answer

True. It caused measurable ionization in Earth’s upper atmosphere, briefly altering radio wave propagation.

Question 6

True or false: The 2004 giant flare from SGR 1806-20 was brighter than a full moon from Earth.

Accepted Answer

True. Despite being 50,000 light-years away, the flare briefly outshone the full moon in gamma rays, ionizing Earth's upper atmosphere.

Question 7

True or false: Magnetars like SGR 1806-20 are powered by their rapid rotation, not their magnetic field.

Accepted Answer

False. Their energy comes from magnetic field decay, not rotation; rotation powers ordinary pulsars.

Question 8

True or false: The 2004 flare from SGR 1806-20 released more energy in one second than the Sun emits in a million years.

Accepted Answer

False. It actually released more energy than the Sun emits in 150,000 years—still staggering, but not a million.

Magnetar SGR 1806-20 Trivia Questions