Across
- 4. Earth's movement around the sun
- 5. FLUX Total solar radiation incident on a surface
- 6. Main source of energy for solar power systems
- 8. Day with maximum positive or negative declination
- 9. TRACKER Device used to follow the sun's movement
- 10. Day when declination angle is zero
Down
- 1. Instrument measuring direct beam radiation
- 2. Instrument measuring global solar radiation
- 3. Solar energy collection system using mirrors
- 7. Earth's spinning motion about its axis
- 9. PATH Apparent daily movement of the sun across the sky