astronomy

NGC 3934

NGC 3934 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 3934 rather than just read about it. In short: NGC 3934 is a spiral galaxy located in the constellation Leo. The redshift of the galaxy is (z) 0.012 and it was discovered by the French astronomer Alphonse Borrelly at an unknown date in 1871, who found it has a magnitude of 13.

Key takeaways

NGC 3934 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 3934 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of NGC 3934 from memory before moving on to harder problems.

Reference excerpt

NGC 3934 is a spiral galaxy located in the constellation Leo. The redshift of the galaxy is (z) 0.012 and it was discovered by the French astronomer Alphonse Borrelly at an unknown date in 1871, who found it has a magnitude of 13. This object has also been classified as a possible polar ring galaxy and also a shell galaxy. It is a member of a compact group of galaxies, of which NGC 3933 is also a part of.

Description NGC 3934 is a peculiar disk galaxy. It contains evidence of a central dust lane shown as obscuring both inner and outer regions in an irregular pattern. There are also shell features in the inner and outer regions of the galaxy, suggesting it is the result of a wet galaxy merger. A study also detected near ultraviolet emission knots located within the ripple feature on the northwest side of the galaxy, supporting this merger theory. Despite the classification of it being a polar ring galaxy, there is no evidence of an inclined ring feature or any polar ring structures. The total star formation of the galaxy has been estimated as 4.6 M☉ per year. It is gas rich, with an estimated mass of around 5 × 109 M☉. An X-shaped structure has been detected in NGC 3934. There is also evidence the galaxy contains molecular gas. When observed, the gas motions are incredibly complex with at least two velocity peaks at 3450 and 3800 kilometers per second, and each located on the dark ring feature and stellar body major axis of the galaxy. There are possible traces of H I emission located in a region that extends downwards to 3400 kilometers per seconds.

References

External links NGC 3934 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

Illustrations

Worked examples

Example 1 — a first encounter with NGC 3934

Start with the simplest possible case. Write down what NGC 3934 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 3934 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 3934 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 3934

In research: NGC 3934 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 3934 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 3934 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Astronomical objects discovered in 1871, Discoveries by Alphonse Borrelly, Galaxy mergers, so understanding it makes those chapters shorter.
In everyday life: Look for NGC 3934 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 3934 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what NGC 3934 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 3934 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is NGC 3934 in simple terms?

Why does NGC 3934 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 3934?

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 3934.