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.
Last Quarter-One-half of the Moon appears to be illuminated by direct sunlight. The fraction of the Moon's disk that is illuminated is decreasing. Waning Crescent-The Moon appears to be partly but less than one-half illuminated by direct sunlight. The fraction of the Moon's disk that is illuminated is decreasing. Following waning crescent is New Moon, beginning a repetition of the complete phase cycle of 29.5 days average duration. The time in days counted from the time of New Moon is called the Moon's age. Each complete cycle of phases is called a lunation.