On this date in 1971, the moon was in a Waxing Crescent phase. This is the first phase after the new moon and an optimal time to see the features of the lunar surface. The moon can be seen in the sky after the sun dips below the horizon at sunset. The moon is close to the sun in the sky and mostly dark except for its right edge which becomes brighter as the days get closer to the next phase which is a First Quarter with 50% illumination.