Test de vocabulari:

1. planemo

2. stellar dynamics

3. Wilson–Bappu effect

4. active galactic nucleus

5. axis of rotation

6. coudé spectrograph

7. relativistic jet

8. topocentric

9. trans-Neptunian object

10. spiral galaxy

11. solar storm

12. galactic astronomy

13. late-type star

14. galactic anticenter

15. star catalogue

16. osculating orbit

17. descending node

18. radial velocity

19. star system

20. minor axis

Temps restant: 200 segons