1. On which constellation can we find the Crab Nebula? Orion Taurus Cancer
2. Who discovered the Crab Nebula? William Herschel Charles Messier John Bevis
3. Which one of these astronomers mistook the Crab Nebula for a star cluster? Lord Rosse William Herschel John Bevis
4. Why was the name 'Crab' selected for the Nebula? Because it was in the constellation of the Crab Earlier drawings by Lord Rosse resembled a crab Because it was discovered in the Chinese year of the crab
5. When did the supernova explosion, that gave birth to the Crab Nebula occur? 285 1054 1406
6. The pulsar at the centre of the Crab Nebula was discovered by, Hubble Space Telescope Gemini North Telescope Arecibo Radio Telescope
7. What is the Messier number assigned to the Crab Nebula? M1 M15 M37
8. What is the estimated size of the Crab Nebula? 2 light years 5 light years 10 light years
9. Crab Nebula can be observed, With the naked eye With 10x50 binoculars Only by telescopes with 6" aperture or larger
10. What is the visual magnitude of the Crab Nebula? +5.3 +8.4 +10.2
