Back burning sensations are any sensations anywhere on the back that elicit a feeling of warmth or heat and may or may not be accompanied by pain. Back burning sensation may also be accompanied by a wide variety of other symptoms, some of which may include feelings of tingling or numbness (paresthesia) or itching. A host of underlying events or conditions may cause back burning sensations.
The Moonâs synodic period is the time between successive recurrences of the same phase; e.g., between full moon and full moon. The synodic period of a planet is the time required for the Earth to overtake it as both go around the Sunâor, in the case of fast-moving Mercury or Venus, for the planet in question to overtake the Earth.
The period of the solar tide is exactly 12.00 hours, while the period of the lunar tide is slightly longer, 12.42 hours, due to the moon's revolution around the earth every 27 days. These tides are called the semidiurnal tides since they have periods of roughly 1/2 day. The inclination of the earth's spin axis to the plane of the moon's revolution about the earth and the earth's revolution about the sun creates in addition weaker diurnal tides with periods of roughly 1 day.