Lunar distance and the 1:81 ratio
This post is a sort of curtain-raiser for another post (or posts) looking at the jigsaw puzzle that is the many concurrent motions of the Moon and how they relate to each other. Some of the work has already appeared on this blog but we’ll make use of that that next time.
The paper Barycenter of the Earth-Moon System tells us:
‘The barycenter of the Earth-Moon system is the center of mass between the Earth and the Moon. The two bodies orbit this point between them…The ratio of masses between the Earth and Moon (1:81) is much larger than those for all other planets in the solar system (<1:4000) making the barycenter unique among the planets.’ [bold added].
Timeanddate.com says:
‘The Moon’s orbit around Earth is elliptical. The point of the orbit closest to Earth is called perigee, while the point furthest away from Earth is known as apogee’.
…’As a result, the distance between the Moon and Earth varies throughout the month and the year. On average, the distance is about 382,900 kilometers (238,000 miles) from the Moon’s center to the center of Earth.’
Finally, Wikipedia refers to ‘the Earth–Moon system, whose barycenter is located on average 4,671 km (2,902 mi) from Earth’s center, which is 74% of Earth’s radius of 6,378 km (3,963 mi).’
– – –
Comparing the figures by deducting the barycentre distance from the Earth-Moon ‘centre-to-centre’ distance:
(382900 km – 4671 km)/4671 = 80.974.
So the ratio of these distances: ‘Earth centre to barycentre’ and ‘barycentre to average E-M distance’ is 1:81, like the mass ratio.
Lunar ratios featuring 81 will appear again in at least one future lunar post.
The Wikipedia animation below (not to scale) doesn’t show the variations in lunar distance, but gives an idea of where the theoretical barycentre is, i.e. at the red cross inside the Earth.
Source: https://tallbloke.wordpress.com/2025/10/14/lunar-distance-and-the-181-ratio/
Anyone can join.
Anyone can contribute.
Anyone can become informed about their world.
"United We Stand" Click Here To Create Your Personal Citizen Journalist Account Today, Be Sure To Invite Your Friends.
Before It’s News® is a community of individuals who report on what’s going on around them, from all around the world. Anyone can join. Anyone can contribute. Anyone can become informed about their world. "United We Stand" Click Here To Create Your Personal Citizen Journalist Account Today, Be Sure To Invite Your Friends.
LION'S MANE PRODUCT
Try Our Lion’s Mane WHOLE MIND Nootropic Blend 60 Capsules
Mushrooms are having a moment. One fabulous fungus in particular, lion’s mane, may help improve memory, depression and anxiety symptoms. They are also an excellent source of nutrients that show promise as a therapy for dementia, and other neurodegenerative diseases. If you’re living with anxiety or depression, you may be curious about all the therapy options out there — including the natural ones.Our Lion’s Mane WHOLE MIND Nootropic Blend has been formulated to utilize the potency of Lion’s mane but also include the benefits of four other Highly Beneficial Mushrooms. Synergistically, they work together to Build your health through improving cognitive function and immunity regardless of your age. Our Nootropic not only improves your Cognitive Function and Activates your Immune System, but it benefits growth of Essential Gut Flora, further enhancing your Vitality.
Our Formula includes: Lion’s Mane Mushrooms which Increase Brain Power through nerve growth, lessen anxiety, reduce depression, and improve concentration. Its an excellent adaptogen, promotes sleep and improves immunity. Shiitake Mushrooms which Fight cancer cells and infectious disease, boost the immune system, promotes brain function, and serves as a source of B vitamins. Maitake Mushrooms which regulate blood sugar levels of diabetics, reduce hypertension and boosts the immune system. Reishi Mushrooms which Fight inflammation, liver disease, fatigue, tumor growth and cancer. They Improve skin disorders and soothes digestive problems, stomach ulcers and leaky gut syndrome. Chaga Mushrooms which have anti-aging effects, boost immune function, improve stamina and athletic performance, even act as a natural aphrodisiac, fighting diabetes and improving liver function. Try Our Lion’s Mane WHOLE MIND Nootropic Blend 60 Capsules Today. Be 100% Satisfied or Receive a Full Money Back Guarantee. Order Yours Today by Following This Link.
| Visits: | 1,736,451,929 |
| Stories: | 8,512,804 |
Whistler Blowers, Insiders
 God's Word - 2 Corinthians Chapter 9 (Jeff Osburn) |