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Exercise "Astronomy", created by baboune16 (a free exercise to learn English):
Results of the 874 people who have taken this test:
Average mark: 66.5 / 100 Share


Latest member with a 100/100 (perfect mark): bleuclair64 / FRANCE, on Thursday 02 December - 17:04:
"Thank you"


They got a perfect mark


Stats (873 candidates)
Question 1 passed: 60.3 %
At the moment,more than 4,500 * have been discovered and confirmed ; however thousands more require further confirmation.

Question 2 passed: 75.7 %
The Earth is located in one of the spiral arms of our *, the Milky Way.

Question 3 passed: 67.5 %
Virgo Cluster is one of the well-known *.

Question 4 passed: 53.4 %
HST or Hubble is a * that was launched into a low orbit in 1990.

Question 5 passed: 56 %
A * is a type of neutron star believed to have a very powerful magnetic field.

Question 6 passed: 67.4 %
Astronomical * is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiations.

Question 7 passed: 51.9 %
A * is a star whose brightness, as seen from Earth, fluctuates.Those stars are classified as intrinsic or extrinsic variables.

Question 8 passed: 62.9 %
Tycho's Nova is one of the few recorded * in the Milky Way.The astronomer Tycho Brahe discovered it in 1572.

Question 9 passed: 72.7 %
Lewis is an * who uses a telescope and computers in an observatory.

Question 10 passed: 80.3 %
A * is a region of spacetime where gravity is so strong that nothing, even radiation such as light, can escape from it.


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