Patent ID: 8460004

Claim:
A field reference chart for correlating the phase of the Moon, the day of the lunar month, and the time period that the phase of the Moon is visible, the field reference chart consisting of: a one-piece background chart, said background chart having information that relates to the phase of the Moon, said information providing each of the phases of the Moon; an indicator wheel, said indicator wheel having information that relates to finding the Moon in the sky, said indicator wheel being aligned with said information on said background chart that relates to the phases of the Moon, said indicator wheel having a phase window cut into the edge of its outer circumference, where indicia adjoins both sides of the phase window, the indicia directing a user to reveal the moon phase illustration that matches the appearance of the Moon in the sky, said indicator wheel having two pointer arrows extending off the outer edge of said indicator wheel on opposite sides, the two pointer arrows simultaneously pointing to the time of day the Moon rises and the time of the day Moon sets on said background chart, respectively, such that upon rotation of said indicator wheel or said background chart, each of said phases of the Moon are revealed through the phase window; and a fastener, said fastener joining said indicator and said background chart at a common center.