solstitial's Usage Examples:

The Chinese divide the time of a complete revolution of the sun with regard to the solstitial points into twelve equal portions, each corresponding to thirty days, ten hours, thirty minutes.

The finest adventure of the first winter at Cape Evans was the daring journey in solstitial darkness via Hut Point to Cape Crozier and back by Dr.

) used most probably a solstitial armilla for measuring the obliquity of the ecliptic.

KOXos, shortened, and ovpfi, tail), in astronomy, either of the two principal meridians of the celestial sphere, one of which passes through the poles and the two solstices, the other through the poles and the two equinoxes; hence designated as solstitial colure and equinoxial colure, respectively.

The first was an equinoctial, the second a solstitial armilla.