Odpowiedź:
Gdańsk (54°N 19°E)
21 III i 23 IX
h = 90° - φ
h = 90° - 54° = 36°
22 VI
h = 90° - φ + 23°27'
h = 90° - 54° + 23°27' = 59°27'
22 XII
h = 90° - φ - 23°27'
h = 90° - 54° - 23°27' = 12°33'
Sydney (34°S 151°E)
21 III i 23 IX
h = 90° - φ
h = 90° - 34° = 56°
22 VI
h = 90° - φ - 23°27'
h = 90° - 34° - 23°27' = 32°33'
22 XII
h = 90° - φ + 23°27'
h = 90° - 34° + 23°27' = 79°27'