astronomy

Philibert Jacques Melotte

Philibert Jacques Melotte 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 Philibert Jacques Melotte rather than just read about it. In short: Philibert Jacques Melotte (29 January 1880 – 30 March 1961) was a British astronomer. Early life Melotte was born in Camden Town, North London to Belgian parents who emigrated from Namur.

Key takeaways

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

Reference excerpt

Philibert Jacques Melotte (29 January 1880 – 30 March 1961) was a British astronomer.

Early life Melotte was born in Camden Town, North London to Belgian parents who emigrated from Namur. His father was a lecturer. Melotte attended the Roan School in Greenwich. He entered the Royal Observatory in 1895 and passed his examination in 1902.

Career In 1908 he discovered a moon of Jupiter, today known as Pasiphae. It was simply designated "Jupiter VIII" and was not given its present name until 1975. The outer main-belt asteroid 676 Melitta, the only asteroid he discovered, is named after the Attic form of the Greek Melissa, the bee, but its resemblance to the discoverer's name is not fortuitous. The conspicuous star cluster in the Coma Berenices constellation is commonly designated Mel 111 since it appeared in Melotte's 1915 catalogue of star clusters, but not in Charles Messier's famous catalogue of deep sky objects or in the New General Catalogue since it was not proved to be a true cluster until 1938 by the astronomer R J Trumpler. Melotte was awarded the Jackson-Gwilt Medal of the Royal Astronomical Society in 1909. A collection of his papers is held at Cambridge University Library.

See also List of astronomical catalogues Collinder catalogue - a similar catalogue of open star clusters published by Per Collinder in 1931.

References

External links The Melotte Catalogue of Star Clusters RGO 74: Papers of Philippe Jacques Melotte

Worked examples

Example 1 — a first encounter with Philibert Jacques Melotte

Start with the simplest possible case. Write down what Philibert Jacques Melotte 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 Philibert Jacques Melotte 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 Philibert Jacques Melotte 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 Philibert Jacques Melotte

In research: Philibert Jacques Melotte 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 Philibert Jacques Melotte 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: Philibert Jacques Melotte is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1880 births, 1961 deaths, 20th-century English astronomers, so understanding it makes those chapters shorter.
In everyday life: Look for Philibert Jacques Melotte 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 Philibert Jacques Melotte in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Philibert Jacques Melotte 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 Philibert Jacques Melotte out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Philibert Jacques Melotte in simple terms?

Philibert Jacques Melotte (29 January 1880 – 30 March 1961) was a British astronomer. Early life Melotte was born in Camden Town, North London to Belgian parents who emigrated from Namur.

Why does Philibert Jacques Melotte 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 Philibert Jacques Melotte?

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 Philibert Jacques Melotte.