Moon Cycle Tessellation

Throw Pillows

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$26.64
Shh op!

Joined August 2008

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Sizing Information

Size Perfect for Insert available
Throw Pillow 16 x 16 inch Couch, Bed
Throw Pillow 18 x 18 inch Couch, Bed
Throw Pillow 20 x 20 inch Couch, Bed
Throw Pillow 24 x 24 inch Couch, Bed, Floor
Throw Pillow 26 x 26 inch Couch, Bed, Floor
Floor Pillow 36 x 36 inch Floor Cover only
Note: Some designs are not available in all sizes.

We recommend using inserts/fills that are bigger than the covers to ensure a plump finish

Features

  • Vibrant double-sided print throw pillows to update any room
  • Independent designs, custom printed when you order
  • Soft and durable 100% Spun Polyester cover with an optional Polyester fill/insert
  • Concealed zip opening for a clean look and easy care

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Artist's Description

#TheMoonCycleChart

The #Moon is directly illuminated by the Sun, and the cyclically varying viewing conditions cause the lunar phases. The unilluminated portions of the Moon can sometimes be dimly seen as a result of earthshine, which is sunlight reflected off the surface of the Earth and onto the Moon. Since the Moon’s orbit is both somewhat elliptical, and inclined to its equatorial plane, librations allow up to 59% of the Moon’s surface to be viewed from Earth (but only half at any instant from any point).

The apparent size of the Moon varies because the orbit of the Moon is elliptical, and as a consequence at one time it is nearer to the Earth (perigee) than half an orbit later (apogee). The orbital period of the Moon from perigee to apogee and back to perigee is called the anomalistic month.

The appearance, or phase, of the Moon is due to its motion with respect to the Sun. It varies in a period of time called a lunation, also called synodic month; its duration is about 2 days longer than an anomalistic month. The age is the number of days since new moon.1

As a consequence, the apparent diameter of a full moon varies, depending on when it occurs in the anomalistic month: larger near the Earth (near perigee); or smaller when more distant (near apogee).

Also, like all celestial bodies, the speed of the Moon varies in its elliptic orbit: faster near perigee, and slower near apogee. So the time of the half lunation between a new moon and the next full moon varies, depending on where in the elliptical orbit it begins, and so affects the age of the full moon.2

The full moon cycle is slightly less than 14 synodic months and slightly less than 15 anomalistic months. Its significance is that when you start with a full moon at the perigee – which appears large, then subsequent full moons will occur ever later after the passage of the perigee; after 1 full moon cycle, the accumulated difference between the number of completed anomalistic months and the number of completed synodic months is exactly 1, and the full moon occurs again at perigee, giving a large apparent moon.

The average duration of the anomalistic month is:

AM = 27.55454988 days3
The synodic month has an average duration of:

SM = 29.530588853 days4
The full moon cycle is the beat period of these two, and has a duration of:

FC = \frac{SM \times AM}{SM-AM} = 411.78443

www.moonconnection.com to find todays moon in you hemisphere!

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