astronomy

Giovanni Plana

Giovanni Plana is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Giovanni Plana rather than just read about it. In short: Giovanni Antonio Amedeo Plana (6 November 1781 – 20 January 1864) was an Italian astronomer and mathematician. He is considered one of the premiere Italian scientists of his age.

Key takeaways

Giovanni Plana belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Giovanni Plana to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Giovanni Plana from memory before moving on to harder problems.

Reference excerpt

Giovanni Antonio Amedeo Plana (6 November 1781 – 20 January 1864) was an Italian astronomer and mathematician. He is considered one of the premiere Italian scientists of his age. The crater Plana on the Moon is named in his honor.

Biography Plana was born in Voghera, Italy to Antonio Maria Plana and Giovanna Giacoboni. At the age of 15 he was sent to live with his uncles in Grenoble to complete his education. In 1800 he entered the École Polytechnique, and was one of the students of Joseph-Louis Lagrange. Joseph Fourier, impressed by Plana's abilities, managed to have him appointed to the chair of mathematics in a school of artillery in Piedmont in 1803, which came under the control of the French in 1805. In 1811 he was appointed to the chair of astronomy at the University of Turin thanks to the influence of Lagrange. He spent the remainder of his life teaching at that institution. Plana's contributions included work on the motions of the Moon, as well as integrals, (including the Abel–Plana formula), elliptic functions, heat, electrostatics, and geodesy. In 1820 he was one of the winners of a prize awarded by the Académie des Sciences in Paris based on the construction of lunar tables using the law of gravity. In 1832 he published the Théorie du mouvement de la lune, the same year he was elected a Foreign Honorary Member of the American Academy of Arts and Sciences. In 1834 he was awarded with the Copley Medal by the Royal Society for his studies on lunar motion. Charles Babbage visited Turin in 1840 at the invitation of Giovanni Plana. Plana became astronomer royal, and then in 1844 a Baron. At the age of 80 he was granted membership in the prestigious French Academy of Sciences. Plana died in Turin on 20 January 1864, aged 82.

Works

Théorie du mouvement de la lune (in French). Vol. 1. Torino: Stamperia reale. 1832. Théorie du mouvement de la lune (in French). Vol. 2. Torino: Stamperia reale. 1832. Théorie du mouvement de la lune (in French). Vol. 3. Torino: Stamperia reale. 1832. Recherches historiques sur la première explication de l'équation séculaire du moyen mouvement de la lune d'après le principe de la gravitation universelle (in French). Torino: Imprimerie Royale. 1857. Mémoire sur l'équation séculaire du moyen mouvement de la lune (in French). Torino: Imprimerie Royale. 1856. Sur la théorie de la Lune (in French). Torino: Imprimerie Royale. 1860.

References

Bibliography O'Connor, John J.; Robertson, Edmund F., "Giovanni Plana", MacTutor History of Mathematics Archive, University of St Andrews Bianchi, Emilio (1935). "PLANA, Giovanni Antonio Amedeo". Enciclopedia Italiana. Rome: Istituto dell'Enciclopedia Italiana. Retrieved 5 August 2025.

External links

Tricomi, F.G. (1981). "Plana, Giovanni". In Charles Coulston Gillispie (ed.). Dictionary of Scientific Biography. Vol. 10. New York: Charles Scribner's Sons. pp. 267–279. Retrieved 23 July 2025. Ciardi, Marco (2015). "PLANA, Giovanni Antonio Amedeo". Dizionario Biografico degli Italiani (in Italian). Vol. 84: Piovene–Ponzo. Rome: Istituto dell'Enciclopedia Italiana. ISBN 978-88-12-00032-6.

Illustrations

Worked examples

Example 1 — a first encounter with Giovanni Plana

Start with the simplest possible case. Write down what Giovanni Plana claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Giovanni Plana before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Giovanni Plana ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Giovanni Plana

In research: Giovanni Plana appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Giovanni Plana in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Giovanni Plana is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1781 births, 1864 deaths, 19th-century Italian astronomers, so understanding it makes those chapters shorter.
In everyday life: Look for Giovanni Plana outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Giovanni Plana in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Giovanni Plana means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Giovanni Plana out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Giovanni Plana in simple terms?

Giovanni Antonio Amedeo Plana (6 November 1781 – 20 January 1864) was an Italian astronomer and mathematician. He is considered one of the premiere Italian scientists of his age.

Why does Giovanni Plana matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Giovanni Plana?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Giovanni Plana.