The solar altitudes for Portsmouth will be:
Equinoxes 90o - 51o = 39o
Summer Solstice 39o+ 23.5o = 62.5o
Winter Solstice 39o - 23.5o = 15.5o
The solar altitudes for Portsmouth will be:
Equinoxes 90o - 51o = 39o
Summer Solstice 39o+ 23.5o = 62.5o
Winter Solstice 39o - 23.5o = 15.5o