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$54.55
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4 Blood Moons T-Shirt

Qty:
Basic Dark T-Shirt
-$2.55
+$18.15
Black
Vivid Printing: White Underbase

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Style: Basic Dark T-Shirt

Comfortable, casual and loose fitting, our heavyweight dark colour t-shirt will quickly become one of your favorites. Made from 100% cotton, it's unisex and wears well on anyone and everyone. We’ve double-needle stitched the bottom and sleeve hems for extra durability. Select a design from our marketplace or customise it to make it uniquely yours!

Size & Fit

  • Model is 188 cm and is wearing a medium
  • Standard fit
  • Garment is unisex sizing
  • Fits true to size

Fabric & Care

  • 100% cotton (Heathers are a cotton/poly blend)
  • Double-needle hemmed sleeves and bottom
  • Imported
  • Machine wash cold

About This Design

4 Blood Moons T-Shirt

4 Blood Moons T-Shirt

The National Aeronautics and Space Administration ( NASA ) defines the occurrence of 4 consecutive total lunar eclipses as a Tetrad. In the years 2014 - 2015 a rare Tetrad sequence will occur on the Jewish Holidays of Passover and the Feast of Tabernacles. In addition to the Tetrad occurrence, 2 total solar eclipses will complement the 4 lunar eclipses on the Jewish New Year and the Feast of Trumpets. Eclipses may occur when the Earth and the Moon are aligned with the Sun, and the shadow of one body cast by the Sun falls on the other. So at new moon (or rather Dark Moon), when the Moon is in conjunction with the Sun, the Moon may pass in front of the Sun as seen from a narrow region on the surface of the Earth and cause a solar eclipse. At full moon, when the Moon is in opposition to the Sun, the Moon may pass through the shadow of the Earth, and a lunar eclipse is visible from the night half of the Earth. Tetradia ; Sometimes 4 total lunar eclipses occur in a row with intervals of 6 lunations (semester), and this is called a tetrad. Giovanni Schiaparelli noticed that there are eras when such tetrads occur comparatively frequently, interrupted by eras when they are rare. This variation takes about 6 centuries. Antonie Pannekoek (1951) explained this phenomenon and found a period of 591 years. Van den Bergh (1954) from Theodor von Oppolzer's Canon der Finsternisse found a period of 586 years. This happens to be an eclipse cycle; see Meeus [I] (1997). Recently Tudor Hughes explained the variation from secular changes in the eccentricity of the Earth's orbit: the period for occurrence of tetrads is variable and currently is about 565 years; see Meeus III (2004) for a detailed discussion.

Customer Reviews

4.7 out of 5 stars rating31.9K Total Reviews
25002 total 5-star reviews4906 total 4-star reviews1091 total 3-star reviews485 total 2-star reviews450 total 1-star reviews
31,934 Reviews
Reviews for similar products
4 out of 5 stars rating
By Jarrod H.28 May 2025Verified Purchase
Basic Dark T-Shirt, Navy Blue, Adult S
I found the shirt quality itself to be well made. Unfortunately I found that the image quality of the artwork is low resoultion. So the art and words aren't as clear. I probably wont buy another shirt to be honest, but I'm glad I supported the podcast of which I'm a fan of. I was just hoping that for the price I paid, it would have been of better quality.
5 out of 5 stars rating
By B M.24 December 2022Verified Purchase
Basic Dark T-Shirt, Black, Adult S
Zazzle Reviewer Program
this was good quality and perfect colour. Printing was great although when we all opened our secret santa gifts one of the other mechanics commented whoever got that for him missed out part time after the word mechanic Sorry I don't have any photos
5 out of 5 stars rating
By Anonymous21 November 2024Verified Purchase
Basic Dark T-Shirt, Black, Adult L
The T-Shirt I ordered arrived promptly and in good condition. My partner loved it. Very pleased with this purchase. Fay B.

Tags

T-Shirts
blood moontetradtetradialunar eclipsesolar eclipseeclipse4 blood moonsred blood moon
All Products
blood moontetradtetradialunar eclipsesolar eclipseeclipse4 blood moonsred blood moon

Other Info

Product ID: 235198327239164734
Posted on 16/12/2012, 10:18 AM
Rating: G