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Description
Mathematical Astronomy for AmateursThis is a clear and simple introduction to the calculations that form the basis of all astronomical laws and observations. Most elementary astronomy books are purely descriptive, while textbooks of mathematical astronomy assume a considerable knowledge of mathematics. Here the author relies only on simple 'school maths' to help the amateur widen his horizons and interpret his observations. Binding Type: Paperback Publisher: W. W. Norton & Company
This is a clear and simple introduction to the calculations that form the basis of all astronomical laws and observations. Most elementary astronomy books are purely descriptive, while textbooks of mathematical astronomy assume a considerable knowledge of mathematics. Here the author relies only on simple 'school maths' to help the amateur widen his horizons and interpret his observations.Binding Type: Paperback
Publisher: W. W. Norton & Company
Published: 01/01/1980
ISBN: 9780393333428
Pages: 156
Weight: 0.45lbs
Size: 8.50h x 5.50w x 0.36d
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4.5 ★★★★★
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Product Reviews
★★★★★ 5
Sturdy
Style: Black 6 Pack, Size: 5.5 inch
I put them up and forgot about them. Worked perfect, look great.
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Reviewed in the United States on May 23, 2026
★★★★★ 4
Works as intended
Style: Black 6 Pack, Size: 7.25 inch
It works as it should. I does look like it bends down after screwing to the wall but the level seemed spot on. Either way it hold up my shelf great
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Reviewed in the United States on January 17, 2026
★★★★★ 5
Solid brackets
Style: Black 6 Pack, Size: 11.25 inch
Nice brackets and solid weight to them. Have purchased 2 sets.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Fantastic slimline brackets
Style: Black 12 Pack, Size: 9.25 inch
We're hanging some shelves that will hold some weight and wanted a minimal amount of shelf to show. It's about what's on the shelf, not the bracket. The black metal adds just a touch of style against the white painted wood shelves. They look great. The best part is that the screws go right into the middle of the shelf which makes it easy to hit the center of the stud. Standard box store lumber fits perfectly. A 1 x 10 fits like a glove and the small lip finishes off the classic look. Comes with all sorts of mounting hardware and the screws are decent quality and went in with no issue or stripping. I usually have to buy better screws but these were fine. At this price it really was an excellent deal and they are heavy duty. Win Win Win.
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Reviewed in the United States on September 29, 2023
★★★★★ 5
Great for adding life around your home desk
Good size and sturdy enough for small speakers and great for adding small touches for decorating around your desk without cluttering your desk space
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Reviewed in the United States on December 1, 2025