astronomy

IC 1262

IC 1262 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 IC 1262 rather than just read about it. In short: IC 1262 is an elliptical galaxy located in the constellation of Hercules. The redshift of the galaxy is (z) 0.032 and it was first discovered by the American astronomer, Lewis Swift in June 1890, who described it as a 14th magnitude galaxy. it is the brightest cluster galaxy of a small galaxy group named after it, with at least 31 members and such is classified as a type cD galaxy.

Key takeaways

IC 1262 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect IC 1262 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of IC 1262 from memory before moving on to harder problems.

Reference excerpt

IC 1262 is an elliptical galaxy located in the constellation of Hercules. The redshift of the galaxy is (z) 0.032 and it was first discovered by the American astronomer, Lewis Swift in June 1890, who described it as a 14th magnitude galaxy. it is the brightest cluster galaxy of a small galaxy group named after it, with at least 31 members and such is classified as a type cD galaxy.

Description IC 1262 is categorized as an early-type galaxy. When observed it is found to have a presence of an arc-feature located east suggested as a recent galaxy merger, with a high surface brightness and such also classified to be a bright source of radio emission. There is also a region area that is located northwards from the arc-feature which it is further separated into other regions, namely the high and low surface brightness region. The star formation of this galaxy has found to be only around 4.35 × 10−2 M☉ per year. It is also found offset from its X-ray peak. The nucleus of the galaxy is active and it has been classified as a radio galaxy with an ultra steep radio spectrum. When observed, it has two extended radio lobes located in both north and south directions, with measured spectral indexes of −2.23 and −19.4. The flux density of the northern lobe at 325 MHz is estimated to be 341.2 ± 0.25 mJy whereas the southern radio lobe at 325 MHz is estimated to be around 855.1 ± 0.25 mJy. There is also presence of radio emission that found extending by more than 200 kiloparsecs over a wide area. Two inner X-ray cavities have been located north and south from the galaxy's center, with further confirmation of a much larger X-ray cavity on the outer side. A filamentary structure has been detected in IC 1262. When observed, the feature is shown to have a sharp and narrow appearance and running from north to south direction. A loop feature is also found north of IC 1262 with a measured length of 20 kiloparsecs. Evidence also found the galaxy is surrounded by a halo of hot gas with a symmetric and smooth appearance.

References

External links IC 1262 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 IC 1262

Start with the simplest possible case. Write down what IC 1262 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 IC 1262 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 IC 1262 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 IC 1262

In research: IC 1262 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 IC 1262 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: IC 1262 is common in secondary-school and first-year university syllabi. It links to neighbouring topics 4C objects, Active galaxies, Astronomical objects discovered in 1890, so understanding it makes those chapters shorter.
In everyday life: Look for IC 1262 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 IC 1262 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what IC 1262 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 IC 1262 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is IC 1262 in simple terms?

Why does IC 1262 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 IC 1262?

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 IC 1262.