Across
- 2. Spectral line splitting due to the influence of magnetic fields is called
- 5. The Magellanic Clouds are
- 6. How many people have set foot on the Moon?
- 7. The first country to send man to the moon
- 9. A pulsar is actually a
- 11. When two heavenly bodies occupy the ecliptic longitude, the bodies said to be in
- 12. first American astronaut to float in space
- 13. What is the Latin name for the lunar seas?
- 16. Who had coined the term asteroid?
Down
- 1. Name the outer boundary of the sun's magnetic field?
- 3. What device first proved that Earth rotates on its axis?
- 4. The biggest asteroid known is
- 8. The study of the origin and evolution of the universe is known as the
- 10. planets has the greatest eccentricity?
- 12. Who's law suggested that there should be a planet between Mars and Jupiter?
- 14. The angular position of an object measured from a fixed point along the horizon is its
- 15. What is the name given to very bright meteors or bolides?
- 17. In which spectral region is it possible for astronomers to observe through clouds?
