The Moon reaches its first-quarter phase at 11:03 a.m. CST today, so sunlight will illuminate half of the hemisphere that faces Earth. The “first-quarter” name indicates that the Moon is one quarter of the way through its month-long cycle of phases.
The Moon reaches its first-quarter phase at 11:03 a.m. CST today, so sunlight will illuminate half of the hemisphere that faces Earth. The “first-quarter” name indicates that the Moon is one quarter of the way through its month-long cycle of phases.