SKU: 32729862565

Mathematical Astronomical Morsels IV

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Mathematical Astronomical Morsels IVBy Jean Meeus. Product Information: Hardbound, 6 by 9 inches, 373 pages. In his Preface to Mathematical Morsels III Jean Meeus writes: We are living in a period of important astrophysical and cosmological research. Many astronomical journals and scientific books deal with subjects such as birth and evolution of stars, black holes, dark matter, gamma ray bursts, supernova remnants or collisions between galaxies. Of course this is important matter, but

By Jean Meeus.

Product Information: Hardbound, 6 by 9 inches, 373 pages.


In his Preface to Mathematical Morsels III Jean Meeus writes: We are living in a period of important astrophysical and cosmological research. Many astronomical journals and scientific books deal with subjects such as birth and evolution of stars, black holes, dark matter, gamma-ray bursts, supernova remnants or collisions between galaxies. Of course this is important matter, but one almost seems to have forgotten the `old' astronomy, the classical, mathematical science of the sky. And yet, without this fundamental astronomy modern research on the universe new would never have been possible.

And to this Roger Sinnott responded “In his Preface the author hints that some readers might accuse him of practicing “old” astronomy. Don't let that fool you. The problems he tackles would have fascinated astronomers of the early 20 th and prior centuries, but those poor souls faced a brick wall of computational difficulty. They had to work out all their answers laboriously, with a pencil and paper. Freed, from that limitation, the author uses today's computers to address each topic with a rigor and finesse beyond the wildest dreams of any old-time practitioner.

This conversation continues in this “Morsels IV” where Jean Meeus concludes his Preface as follows: Certainly this book will not make astronomy to progress. Rather, most subjects discussed in this book belong to what might be called recreational astronomy. While making the calculations and writing the text, we felt being as Sir Arthur Conan Doyle wrote in The Hound of the Basikerville

A dabbler in science, Mr. Holes, a picker up of shells on the shores of the great unknown ocean.

And not too far into this book he cites Maurice Ravel's Une Barque sur l'Océan (a boat at sea) piano piece as launching point into a study of when a horizon skimming Moon might look like a boat at sea. Interested? Here are 68 more subjects that have washed upon the beach of Jean Meeus ' imagination.

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SKU: 32729862565

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Battle Creek, US
★★★★★ 5
Great little budget tote
Color: Black, Color: Black
I use this as my everyday bag (with an organizer inside) and it's the best little bag I've ever had. It's sturdy but soft, the strap is easily adjustable to a bunch of different lengths, and it's roomy enough in the inside for average everyday needs plus the occasional extras! The material is thick enough to be good quality, but not overly inflexibly thick. I also covered mine in pinback buttons and enamel pins, and the fabric is really good for pins - They go on firmly and don't slide around. I saw a lot of complaints about smell, but mine had no bad smell at all!
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Reviewed in the United States on April 27, 2025
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Kim
Natrona Heights, US
★★★★★ 5
Crossbody Purse with a choice of a bunch of colors to choose from!!
Color: Red
This is a great crossbody purse for anyone!! It holds my wallet, makeup bag, phone as well as a ton more space to add more stuff in!! I currently own the red and the army green. This is a great purchase!
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Reviewed in the United States on November 23, 2025
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chicken26
Chelsea, US
★★★★★ 4
Decent bag
Color: Light Grey, Color: Light Grey
2.5 year update: I'm ready to replace my beloved grey bag, but most of the colors more than doubled in price!! I get that there's inflation, but that's insanity. It was $10.99 when I bought in 2019. Forget this brand. Dropped a star. ----------------------------------------- Original review: In the photo, that's a 32oz Nalgene bottle and a small, Periea Chelsy organizer (found on Amazon, 8.5 inches long). 9 months of near daily use so far, no issues! I even got oil and ink stains on it, and they came right out. Great runaround bag, not too big not too small. Love it. First things I did, removed the label and coated it in Kiwi Protect All spray. Pros: - 2 pockets inside are deep and sooo useful - very cute - comfortable and very light to carry - adjustable strap length, for shoulder or crossbody - price is right - machine washable Cons: - zipper is a bit "sticky" - words on the label are classic Chinese-English, reminds me of Taiwan. Lol - no inside lining - fabric could be thicker. It's thin for canvas. - metal hardware is not stainless steel Neutral: - medium size (model must be child size, pay attention to dimensions. I'd say it's similar to standard disposable grocery bag size, cept taller) - durability is questionable. It's not going to come apart if you look at it wrong, but I definitely wouldn't try using this as a bookbag either. For the price, it seems sturdy enough. When this bag dies, I will 100% be buying another one if it's still available. Love it.
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Reviewed in the United States on February 15, 2019
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Sierra
Lexington, US
★★★★★ 5
Great value for amazing bag
Color: Pink
Great deal on this tote bag, the strap length is extremely adjustable for size and different wearability. It has good storage space and no pockets inside but works well. It looks great with different colors I have the pink and my boyfriend has the coffee one which looks amazing. I added pins to mine and looks great! Love this bag
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Reviewed in the United States on October 10, 2025
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Imani
Grantham, US
★★★★★ 3
I love my bag.
Color: Leopard White, Color: Leopard White
love the design, i barely put anything in it tho because it weighs the bag down even though it’s a nice size. out of the package looks like it hasn’t been sown properly thru, pieces of the fabric sticking out. (loose thread) you get what u pay for but still pretty. Update, Maybe i underestimated my baby love, she fighting the greatest fight! Still love my baby! I would buy another! i want the whole collectionnnnn!
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Reviewed in the United States on September 12, 2025

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