Ascertain the Moon Phase With Your Hand
Can't tell whether the moon is waxing or waning? Is it going to be a Full Moon next week, or Dark Moon? The Moon's phases grow from right to left in the Northern Hemisphere, backwards to how you - in the West - read. So the Waxing Moon begins on the right side of the moon. And the Waning Moon ends on the left side. But how can you remember this easily? Here's a simple way to determine whether the moon is waxing or waning.
Steps
- Flatten your right hand, with your fingers together and your thumb sticking out at 90°.
- Hold your hand out at arm's length in front of you. Tilt your fingers to a 45° angle to the left.
Alternative Method
- It can be imagined as if you are holding a glass of water with your right hand fingers and thumb and drinking... as shown in the figure below -
- See how the curve along your thumb and first finger makes a crescent, roughly like a backwards letter "'C'"? It actually looks sort of like this: ) This is the shape of the Waxing Moon. If the Moon's curve fits along this right-hand curve, it is a Waxing Moon.
- Commit it to memory. One way to remember this is to think of drawing in wax. Most people are right-handed, and if they were to draw in wax, they'd use their right hand. So if the Moon fits in your right-hand curve, it is waxing.
- Do the same with the left hand. This makes a shape like: ( This is the shape of the Waning Moon. If the moon fits in this curve, you know it is getting smaller every day, going toward the New Moon / Dark Moon.
Tips
- Reference a moon phase calculator such as a solunar iPhone app
- Moon on the right, getting bigger every night (waxing).
- If you have difficulty remembering that waning means getting smaller, you can think that waning means weakening. Weakening has the word waning inside it: W-e-A-k-e-N-I-N-G.
- NASA (National Aeronautics and Space Administration) is a vast storehouse of knowledge about celestial phenomena. If you want to know anything at all about the moon, including when the next eclipse is going to be, check their website.
- When the moon is waning, it is fading to the left until there's no moon remaining.
- Waxing is easy to remember if you remind yourself that when you wax the floor, it grows in brightness and shine ~ just like the moon grows in brightness when it is waxing.
- (Important Note: If you live in the Southern Hemisphere, this process is reversed.) Think that the moon looks like a letter "C" for "crescendo" when in the waxing phase.
Related Articles
- Enjoy a Chinese Moon Festival
- Compute an Earth Moon Spacecraft Trajectory
- Predict the Weather Without a Forecast
- Find True North Without a Compass
Sources and Citations
- http://www.calculatorcat.com/moon_phases/moon_phases.phtml CalculatorCat.com moon phases
Moon Phases & Wicca - Original source of information, used with permission by author.