astronomy

Zaccheus Daniel

Zaccheus Daniel 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 Zaccheus Daniel rather than just read about it. In short: Zaccheus Daniel (1874 - March 30, 1964) was an American astronomer known for the discovery of numerous comets. Education Daniel pursued his degree at Princeton University starting in 1903.

Key takeaways

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

Reference excerpt

Zaccheus Daniel (1874 - March 30, 1964) was an American astronomer known for the discovery of numerous comets.

Education Daniel pursued his degree at Princeton University starting in 1903. It was at Princeton's Halmsted Observatory on December 7, 1909, that he identified 33P. By this point, Daniel had already discovered two comets — C/1907 L2 (Daniel) and C/1909 L1 (Borrelly–Daniel) — which he discovered in June 1907 and June 1909 respectively. Starting in 1910, he began work at the Allegheny Observatory at the University of Pittsburgh. Daniel died on June 30, 1964.

Awards and honors In March 1910, Daniel was awarded the sixty-eighth Donohoe Comet Medal by the Astronomical Society of the Pacific. The University of Pittsburgh maintains a fellowship program in Daniel's honor, accepting multiple students each year.

Worked examples

Example 1 — a first encounter with Zaccheus Daniel

Start with the simplest possible case. Write down what Zaccheus Daniel 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 Zaccheus Daniel 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 Zaccheus Daniel 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 Zaccheus Daniel

In research: Zaccheus Daniel 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 Zaccheus Daniel 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: Zaccheus Daniel is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1874 births, 1964 deaths, American astronomers, so understanding it makes those chapters shorter.
In everyday life: Look for Zaccheus Daniel 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 Zaccheus Daniel in 20 minutes

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

Frequently asked questions

What is Zaccheus Daniel in simple terms?

Zaccheus Daniel (1874 - March 30, 1964) was an American astronomer known for the discovery of numerous comets. Education Daniel pursued his degree at Princeton University starting in 1903.

Why does Zaccheus Daniel 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 Zaccheus Daniel?

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 Zaccheus Daniel.