astronomy

NGC 3314

NGC 3314 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 3314 rather than just read about it. In short: NGC 3314 is a pair of overlapping spiral galaxies in the constellation of Hydra. The pair was discovered by British astronomer John Herschel on 24 March 1835.

Key takeaways

NGC 3314 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 3314 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of NGC 3314 from memory before moving on to harder problems.

Reference excerpt

NGC 3314 is a pair of overlapping spiral galaxies in the constellation of Hydra. The pair was discovered by British astronomer John Herschel on 24 March 1835. Herschel and others did not realize that what appeared to be a single galaxy, is actually two galaxies in the same line of sight.

The unique alignment of both spiral galaxies gives astronomers the opportunity to measure the properties of interstellar dust in the face-on foreground galaxy (NGC 3314a). The dust appears as dark blue against the background galaxy (NGC 3314b). Unlike interacting galaxies, the two components of NGC 3314 are physically unrelated, and are too distant from one another to interact. In a March 2000 observation of the galaxies, a prominent green star-like object was seen in one of the arms of one of the galaxies. Astronomers theorized that it could have been a supernova, but the unique filtering properties of the foreground galaxy made it difficult to decide definitively. NGC 3314a has its spiral arms and copious amounts of dust obscuring the background galaxy NGC 3314b. A dust tail can also be seen from NGC 3314a, being a sign of Ram Pressure stripping caused by NGC 3314a rushing through the ICM of its home cluster, the Hydra Cluster. Both of the galaxies are members of the Hydra Cluster.

References

External links Media related to NGC 3314 at Wikimedia Commons "Hubble Spies Galaxy Silhouettes". ScienceDaily. 25 September 2008. Retrieved 25 March 2018. Nemiroff, R.; Bonnell, J., eds. (7 May 2005). "NGC 3314: When Galaxies Overlap". Astronomy Picture of the Day. NASA. Retrieved 25 March 2018.

NGC 3314 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images "NGC 3314". SIMBAD. Centre de données astronomiques de Strasbourg.

Illustrations

Worked examples

Example 1 — a first encounter with NGC 3314

Start with the simplest possible case. Write down what NGC 3314 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 3314 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 3314 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 3314

In research: NGC 3314 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 3314 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 3314 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Astronomical objects discovered in 1835, Barred spiral galaxies, Discoveries by John Herschel, so understanding it makes those chapters shorter.
In everyday life: Look for NGC 3314 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 3314 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what NGC 3314 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 3314 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is NGC 3314 in simple terms?

NGC 3314 is a pair of overlapping spiral galaxies in the constellation of Hydra. The pair was discovered by British astronomer John Herschel on 24 March 1835.

Why does NGC 3314 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 3314?

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 3314.