Tetraëteris Mug
A tetraëteris is the Greek name for the period in 4 tropical years where the Moon phase occurs 2 weeks earlier, defined as 49 synodic months, 52.961595389901795 sidereal months, 53.174596199249 draconic months, 52.513969931831795 anomalistic months, and 1,446.998810185187 days. Though if you intercalate it, you get 50 synodic months, 54.04244427541 sidereal months, 54.25979204005 draconic months, 53.58568360390999 anomalistic months, and 1,476.52939814815 days. If you go halfway between 49 and 50 synodic months, you get 49 1/2 synodic months, which’s 53.5020198326559 sidereal months, 53.717194119649506 draconic months, 53.0498267678709 anomalistic months, and 1,461.7641041666686 days, which makes up half of an octaëteris, leading from a new/full moon to a full/new moon less than 1 day later. Which’s just about 4 full synodic revolutions of Uranus, and leads from a new/full moon to a full/new moon within 15 days later. The tetraëteris has been used for the Olympic games in that if the Olympic games of a games occurred 49 synodic months after the last events, then the next games would occur 50 synodic months later, then 49 more later, and then 50, vice versa, as 49 + 50 = 99 synodic months, making an octaëteris.
The Urban Dictionary Mug
Customer Reviews
Loved it!
My 4th cup purchase just love them
He loved the mug!
The cup is very nicely designed
Got as a gift for a friend and he loved it and thought it was really funny. Great quality and very strong feeling build.
Great mug. Super customer service!
Love their products. Have bought numerous mugs. Buy 'em.
If you buy these mugs. You are a giga chad
They managed to squeeze the (edited down) definition onto the side of the mug in its entirety, so no complaints! Was worried it was going to cut off in the middle of a word or something.
The definition really makes it
Very prompt order fulfillment, and all the messaging was perfect!! Looks great! Thank you!
THIS MUG IS AMAZING!!
Love my mug! Everything looks perfect.
Just wonderful thanks
I am so thrilled that I found a mug with the exact sentiments I was looking for. This will be great in the future for birthday and xmas gifts.
I Like This Mug because im thicc and therefor this mug is thicc
Ok These mugs are really easy presents for the people you love i would find the best example of them and then buy and mug and give it to them as a present So simple
This mug is perfect! High quality product
My Aiden mug is awesome
This item was ordered as a gift, so you can imagine how happy I was to see it arrive in a box. Not only was it true to order in color and wording but was also without holes and held a strong cup of tea. However, I would not recommend green tea for this mug, or any mug for that matter as I prefer black teas. Emiyah will love it once she decides to return from France bringing her awesome hair and her kind heart and maybe some macaroons. I will put it to use until then and think of her fondly.