astronomy

NGC 156

NGC 156 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 NGC 156 rather than just read about it. In short: NGC 156 is a double star located in the Cetus constellation. It was discovered in 1882 by Ernst Wilhelm Leberecht Tempel.

Key takeaways

NGC 156 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect NGC 156 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of NGC 156 from memory before moving on to harder problems.

Reference excerpt

NGC 156 is a double star located in the Cetus constellation. It was discovered in 1882 by Ernst Wilhelm Leberecht Tempel.

See also New General Catalogue List of NGC objects

References

Further reading Steinicke, Wolfgang (2007), Jakiel, Richard (ed.), Galaxies and How to Observe Them, Springer, ISBN 978-1852337520 Sinnott, R. W. (1988). NGC 2000.0: The Complete New General Catalogue and Index Catalogues of Nebulae and Star Clusters. Sky Publishing. ISBN 978-0-933346-51-2.

External links

NGC 156 "NED results for object NGC 0156". NASA/IPAC Extragalactic Database. NASA. "Revised NGC Data for NGC 156".

NGC katalog Interaktivni NGC Online Katalog Astronomska baza podataka SIMBAD NGC katalog na Messier45.com Archived 2018-09-23 at the Wayback Machine NGC/IC projekt NGC2000 na NASA sajtu NGC na The Night Sky Atlas sajtu

Illustrations

Worked examples

Example 1 — a first encounter with NGC 156

Start with the simplest possible case. Write down what NGC 156 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 NGC 156 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 NGC 156 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 NGC 156

In research: NGC 156 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 NGC 156 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: NGC 156 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Cetus (constellation), Double stars, Multiple star stubs, so understanding it makes those chapters shorter.
In everyday life: Look for NGC 156 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 NGC 156 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what NGC 156 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 NGC 156 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is NGC 156 in simple terms?

NGC 156 is a double star located in the Cetus constellation. It was discovered in 1882 by Ernst Wilhelm Leberecht Tempel.

Why does NGC 156 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 NGC 156?

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 NGC 156.