The Orrery
SKU: 29707217443

The Orrery

Sale price$27.86 Regular price$30.95
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Description

The OrreryEdited by Caxton C. Foster Product Information: hardbound, 6 by 9 inches, 328 pages, 133 Illustrations An orrery is a mechanical device designed to demonstrate the rotation and orbital motion of the earth, and the orbital motion of the moon and the planets. The device was given the name orrery by its inventor, John Rowley, as a gesture of gratitude to the nobleman who employed him Charles Boyle, the fourth Earl of Orrery (16761731). The Orrey Computer

Edited by Caxton C. Foster

Product Information: hardbound, 6 by 9 inches, 328 pages, 133 Illustrations

An orrery is a mechanical device designed to demonstrate the rotation and orbital motion of the earth, and the orbital motion of the moon and the planets. The device was given the name orrery by its inventor, John Rowley, as a gesture of gratitude to the nobleman who employed him Charles Boyle, the fourth Earl of Orrery (1676–1731).

The Orrey — Computer Models of Astronomical Systems tells you how to exploit the power of the computer to model dozens of astronomical systems. Written in a conversational mode, it includes both the formulae and source code, in BASIC, (on disk) and executable files so you do not need a BASIC complier or runtime program to execute the programs. Subjects include: Simple Harmonic Motion, The Doppler Effect, Non-Spherical Masses in Orbit, Trojan Stability, Orbital Resonances, Ovendens Principle, Size Distributions of the Minor Planets, Global Positioning System, Gravitational Lenses, Harmonies Among the Stars, An Animated Analemma, Stability Zones, Solar Sailing, The Heliogyro, Building a Galaxy, Moon Phases, plus much, much more...

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SKU: 29707217443

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4.8 ★★★★★
Based on 93 reviews
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Coffman, H
Waukegan, US
★★★★★ 5
Cheap, and effective!
Color: Black, Number Of Shelves: 4, Size: 15.7in
Looks good, works great, low cost. I'll be purchasing more in the future.
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Reviewed in the United States on May 12, 2026
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Verified Purchase
Amazon Customer
Birmingham, US
★★★★★ 4
Cute for coffee bar!
Color: Black, Number Of Shelves: 4, Size: 15.7in
Great for above my coffee bar. Easy to mount and align. Seems stable!
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Reviewed in the United States on April 14, 2026
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Verified Purchase
Samuel Roberts
Los Angeles, US
★★★★★ 5
Great shelves, strong, secure, sturdy, decent size, unbeatable price.
Color: White, Number Of Shelves: 4, Size: 15.7in
Easy installation fits where we wanted them. Stable strong secure snug fit. Cleans easily with dust wipe. I would recommend buying these.
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Reviewed in the United States on May 19, 2026
C
Verified Purchase
Clara
San Leandro, US
★★★★★ 3
The shelves sag away from the wall overtime
Color: White, Number Of Shelves: 2, Size: 15.7in, Color: White, Number Of Shelves: 2, Size: 15.7in
Although the wood quality and finish of the shelf are clean and well-made, the main issue is that the shelves begin to sag over time while holding around 10 pounds, even though the product listing claims they can support up to 20 pounds. They may perform better on a brick wall, but on drywall you should be cautious. To fix the problem, I had to purchase floating shelf brackets for support, which solved the sagging issue. However, this defeats the purpose of the “floating” aesthetic. Since the shelf is in my bedroom, I can overlook it, but I personally wouldn’t install these in a common area if I wanted a clean floating look.
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Reviewed in the United States on May 27, 2026
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Verified Purchase
Mo
Cuba, US
★★★★★ 5
Love this
Color: Rustic Brown, Number Of Shelves: 4, Size: 15.7in
Love these shelves so easy to put up so beautifully made and really enjoy the way they set on my wall very sturdy also!
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Reviewed in the United States on May 21, 2026

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