Question 1633Navigation General

The correct answer is B) tidal day. The lunar day, also known as the tidal day, is the period of time between two consecutive upper transits of the moon over a given location. This is approximately 24 hours and 50 minutes, as the moon's position in the sky shifts about 50 minutes later each day due to the moon's orbit around the Earth. The other options are incorrect: A) nodal day refers to the period between consecutive crossings of the moon's orbit across the celestial equator. C) vulgar establishment of the port refers to the average time difference between the moon's upper transit and the corresponding high tide. D) lunitidal interval refers to the time difference between the moon's upper transit and the next high tide.