
September's new moon will partially eclipse the sun, though the eclipse will only be visible from the southern Pacific Ocean and Antarctica.
A new moon is when the moon shares the same celestial longitude as the sun; the two bodies are said to be in conjunction. This occurs about every 29.5 days. The exact moment of this months' new moon occurs today (Sept. 21) at 3:54 p.m. EDT (1954 GMT).