1. Pleiades star clusters is, A globular star cluster An open star cluster An asterism
2. What is the Messier number of the Pleiades star cluster? M10 M21 M45
3. What is the average distance of the Pleiades star cluster? 425 light years 1620 light years 6100 light years
4. How many stars have been observed in the Pleiades star cluster? 50 stars 150 stars 500 stars
5. Pleiades star cluster can be best observed with, The naked eye A pair of binoculars A telescope at high magnification
6. What is the brightest star of the Pleiades cluster? Pleione Alcyone Elektra
7. What is the estimated age of the Pleiades star cluster? 100 million years 3.5 billion years 11 billion years
8. The nebula seen in the Pleiades star cluster is, A dark nebula An emission nebula A reflection nebula
9. What is the relationship between the background nebula (Maia nebula) and Pleiades cluster? Nebula is the remnent of the dust cloud that gave birth to Pleiades Pleiades cluster is just passing through the nebula Nebula is located thousands of light years behind Pleiades
10. Majority of the Pleiades stars belong to, Spectral class O Spectral class B Spectral class G
