astronomy

NGC 2962

NGC 2962 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 2962 rather than just read about it. In short: NGC 2962 is a lenticular galaxy in the constellation Hydra. The galaxy lies about 110 million light years away from Earth, which means, given its apparent dimensions, that NGC 2962 is approximately 90,000 light years across.

Key takeaways

NGC 2962 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 2962 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of NGC 2962 from memory before moving on to harder problems.

Reference excerpt

NGC 2962 is a lenticular galaxy in the constellation Hydra. The galaxy lies about 110 million light years away from Earth, which means, given its apparent dimensions, that NGC 2962 is approximately 90,000 light years across. It was discovered by Albert Marth on December 10, 1864.

Characteristics NGC 2962 is lenticular galaxy with two bars without a box shaped bulge. The galaxy also has two rings, an inner ring with major axis 0.93 arcminutes long and an outer ring with major axis 2.13 arcminutes long. The galaxy features a hydrogen disk, visible in HI, extending well beyond the optical radius of the galaxy. The outer ring of NGC 2962 has low surface brightness and is created by tightly wound spiral arms which overlap while there are faint connections with the central region. There is no spiral pattern in the brighter, inner region of the galaxy. The outer ring is better visible in ultraviolet than the inner ring and contains about 5–8% of the stellar mass of the galaxy. Ultraviolet imaging by GALEX shows it is bluer than the rest of the galaxy and has spiral arms emerging from it. The ring corotates with the rest of the galaxy. The galaxy has probably accreted gas from a companion galaxy, which has led to renewed star formation activity in the nucleus.

Supernova One supernova has been observed in NGC 2962, SN 1995D. The supernova was discovered by Reiki Kushida in CCD images on 10 February 1995 at an apparent magnitude of 14.0, lying 11 arcseconds east and 90.5 arcseconds to the south of the centre of the galaxy. The galaxy was identified as a Type Ia supernova about a week before maximum.

Nearby galaxies NGC 2962 is the foremost galaxy of the NGC 2962 Group or LGG 178. Other members of the group include NGC 2966 and UGC 5107. A hydrogen bridge has been found to connect NGC 2962 with gas rich galaxy SDSS J094056.3+050240.5, lying 8 arcminutes away.

References

External links

NGC 2962 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 2962

Start with the simplest possible case. Write down what NGC 2962 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 2962 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 2962 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 2962

In research: NGC 2962 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 2962 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 2962 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Astronomical objects discovered in 1864, Discoveries by Albert Marth, Hydra (constellation), so understanding it makes those chapters shorter.
In everyday life: Look for NGC 2962 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 2962 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what NGC 2962 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 2962 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is NGC 2962 in simple terms?

Why does NGC 2962 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 2962?

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 2962.