astronomy

NGC 7463

NGC 7463 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 7463 rather than just read about it. In short: NGC 7463 is a peculiar intermediate spiral galaxy, located in the constellation of Pegasus. Its velocity relative to the cosmic microwave background is 1979 ± 26 km/s, which corresponds to a Hubble distance of 29.2 ± 2.1 Mpc (~95.2 million light- years).

Key takeaways

NGC 7463 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 7463 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of NGC 7463 from memory before moving on to harder problems.

Reference excerpt

NGC 7463 is a peculiar intermediate spiral galaxy, located in the constellation of Pegasus. Its velocity relative to the cosmic microwave background is 1979 ± 26 km/s, which corresponds to a Hubble distance of 29.2 ± 2.1 Mpc (~95.2 million light- years). NGC 7463 was discovered by the German-British astronomer William Herschel in 1784.

NGC 7448 group

According to two publications from 1991 and 1992, NGC 7463 is a member of the NGC 7448 group, a group of galaxies. Given that NGC 7463 likely forms a system of galaxies gravitationally interacting with its neighbors, members of the NGC 7448 group, it is therefore probable that it also belongs to this group. Furthermore, in an article published in 1998, the Armenian astronomer Abraham Mahtessian also includes NGC 7463 in the same group as NGC 7468. According to AM Garcia, the NGC 7448 group contains at least 8 members, namely NGC 7448, NGC 7454, NGC 7464, NGC 7465, NGC 7468, UGC 12313, UGC 12321 and UGC 12350. In an article published in 2006 Chandreyee Sengupta and Ramesh Balasubramanyam also mention the NGC 7448 group with the same galaxies as Garcia, and NGC 7463 is not found there. All the galaxies in this group are weak X-ray emitters.

Galaxy triplets NGC 7463 forms a triplet of galaxies with NGC 7464 and NGC 7465. The three galaxies probably interact with each other, causing remarkable distortions within their structure. In addition, the galaxy UGC 12313, located further north, also appears to interact with the group. However, there is a difference of approximately 7.1 Mpc (~23.2 million ly) between NGC 7463 and NGC 7464, as well as a difference of approximately 5.4 Mpc (~17.6 million ly) with NGC 7465. It is therefore doubtful that NGC 7463 forms a true triplet of galaxies with its two other neighbors, and the same applies to its membership in the group of NGC 7448, whose average distance is equal to 25.0 ± 1.6 Mpc (~81.5 million ly).

References

External links

NGC 7463 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 7463

Start with the simplest possible case. Write down what NGC 7463 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 7463 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 7463 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 7463

In research: NGC 7463 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 7463 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 7463 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Astronomical objects discovered in 1784, Discoveries by William Herschel, NGC objects, so understanding it makes those chapters shorter.
In everyday life: Look for NGC 7463 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 7463 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what NGC 7463 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 7463 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is NGC 7463 in simple terms?

Why does NGC 7463 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 7463?

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 7463.