View Here : Phases Of The Moon December 2017
The lunar phases are produced by the interaction between the movements of the sun, moon and earth. In one year the moon takes thirteen tours around the earth, ie thirteen lunations. Each lunar cycle lasts about 28 days. Normally, we know eight types of moon phase, New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Last Quarter and Wanning Crescent.
For optimal auroral viewing, the Moon may not disturb because light from the Moon can be very bright which causes faint aurora to be barely visible, especially when the chances for auroral viewing are low. Below you'll find the Moon Phases for the current and next month so that you'll know exactly when the Moon will be a disturbing factor.