It’s a challenge every month to spot the New Moon after sunset by naked eye (or eyeglasses) as early as possible. I use the term New Moon in its classical sense of one’s first sighting of the Moon after its monthly solar conjunction (Dark Moon). The Dark Moon (which some call New Moon) will be in geocentric longitudinal conjunction with the Sun on 2018 JUL 13 at 02:48 UT (12 at 21:48 CDT).
As we move past the time of the Summer Solstice, sighting a very young Moon starts to become more difficult. However, some sharp-eyed North American observers might be able to spot the one-day old crescent Moon after sunset on Friday, July 13. Others may have better luck the next evening. See my New Moon Spotting graphics listed above.
Also above is a link to a panorama including all Diana’s Bows in 2018. Those are waxing crescent Moons about 10% illuminated and aged about three days. The name is a reference to the archery equipment of the ancient Roman Goddess of Hunting and the Moon. The graphic nicely illustrates how the season of the year affects the viewing of a waxing crescent Moon.
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