l lang="en" style="font-size: 14px;">centregalilee.com 110G: street EducationWe are looking down on the solar system, from above the north Pole. The Earthrotates on its very own axis counterclockwise once a job (you deserve to verify this bychecking the the sunlight will show up to climb in the eastern at dawn and set in thewest at dusk), and also the Moon orbits counterclockwise about the earth once amonth.The Moon has actually been attracted in that eight major phases. In every case, a figure() placed below the Moon on the surface ar of theEarth mirrors where one would stand to see the Moon straight overhead, and also thetime of work or night is identified. You have the right to imagine that the planet is thecenter the a gigantic clock, and also as you stand on it you move through 24 (not12!) hours with every complete circle, developing our night and also day cycle.

You are watching: What moon crosses your meridian at 9pm

The Moon is always fifty percent illuminated (the side dealing with the Sun), and fifty percent inshadow (the side concealed from the Sun). Where have to the Moon it is in (relative tothe Earth) so the we watch the fraction of the illuminated next correspondingto the correct lunar phase? What time is the if you are on the side of theEarth straight underneath this point?The complying with table lists the eight significant phases the the Moon. It reflects theappearance that the Moon indigenous Earth, and the time of night or day at which theMoon will certainly be directly overhead because that each phase. Test your knowledge bylooking at every phase, and also comparing the illustration of the Moon in the tablewith the portion of the Moon which is illuminated which deserve to be viewed fromEarth (as deduced from the over figure).Lunar PhaseAppearance Overhead
Full Waning gibbous Third 4 minutes 1 Waning crescent New Waxing crescent First quarter Waxing gibbous
12am 3am 6am 9am 12pm 3pm 6pm 9pm
You may assume the it is noon once the sun is straight overhead in the sky,6pm in ~ sunset, midnight when the sun is most covert behind the Earth, and 6amat sunrise. (Don"t worry about daylight to save time, and remember that 12pmis noon, and 12am is midnight.)When considering rising and setup times, you have to think about when theMoon will appear on the horizon. The is necessary to realize the in thefigure above, we have attracted the Earth and the Moon much larger than theyreally room so that they will be basic to see. In the number below, this strategy is recurring on the left. In the number onthe right, however, we have drawn the Earth and Moon at your actual size(keeping the distance between the Earth and also the Moon constant). If you onlylooked at the figure on the left, you might be tempted to say the the personneeded to rotate back a few degrees (rather climate standing straight up), as isshown, in stimulate to view the Moon top top the horizon. The number on the rightshould relief you that due to the fact that the Earth and Moon room both much smaller thanthe distance in between them, you deserve to see the Moon ~ above the horizon once it lies afull quarter-turn far from you.

See more: What Does A Mi Me Gusta Mean In Spanish, What Is The Difference Between: A Mi Me Gusta

You deserve to assume the the Moon will lie over the horizon for twelve hrs outof every day, and will be concealed on the other side the the earth for twelvehours out of every day. It appears on the eastern horizon, gradually risesthrough the sky for six hours until that reaches that maximum elevation in the sky(transits), and then gradually sets for six hours until the falls listed below thewestern horizon. The Moon will lie overhead six hours after rising, and willset six hrs after that is overhead.We map this this pattern the end for the complete Moon below. That rises majesticallyabove the east horizon at around dusk, ascends through the sky untiltransiting at midnight, and also then slowly sets toward the west horizon,reaching it at dawn.