astronomy

IC 1182

IC 1182 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 1182 rather than just read about it. In short: IC 1182 is a type S0-a lenticular galaxy located in Hercules. It is located 464 million light-years away from the Solar System and was discovered on August 11, 1892, by Stephane Javelle.

Key takeaways

IC 1182 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 1182 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of IC 1182 from memory before moving on to harder problems.

Reference excerpt

IC 1182 is a type S0-a lenticular galaxy located in Hercules. It is located 464 million light-years away from the Solar System and was discovered on August 11, 1892, by Stephane Javelle. IC 1198 is a member of the Hercules Cluster, which is a part of the CfA 2 Great Wall.

Description IC 1182 was originally classified as a Seyfert type 2 galaxy but later, research shows it is an unusual and rare galaxy in some kind of merger event. A jet which is extending out from the center in an easterly direction is composed of kinetic material. There is a broad, faint S-shaped plume and debris on the other side of the galaxy. IC 1182 radiates a lot of energy and ejects a substantial amount of material at high velocity. In its central region, clusters of O-type hot blue stars are present.

An ongoing merger? IC 1182 shows high resolution broad and narrow band images and long slit spectroscopy. It reveals a distorted morphology with a heavily obscured disk-link structure with several knots in its regions. Some of the galactic material, in the form of two slender tails are detected beyond the main body of the galaxy. IC 1182 has color indices of an early type object which is significantly bluer than what is typical for this kind of galaxy. The narrow lines show this galaxy is a powerful emitter and the knots in the central region and inside the tail emerging eastward from the galaxy are luminous in Hα and have typical sizes of 1 kpc. Additionally, IC 1182 contains large quantities of neural hydrogen which its distance-independent ratio of hydrogen mass to optical luminosity is equal to 0.7 times the solar ratio. This could indicate it might be involved in a collision involving a gas-rich spiral galaxy which gives rise to observed nuclear emission lines.

References

Illustrations

Worked examples

Example 1 — a first encounter with IC 1182

Start with the simplest possible case. Write down what IC 1182 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 1182 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 1182 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 1182

In research: IC 1182 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 1182 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 1182 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Astronomical objects discovered in 1892, Hercules (constellation), Hercules Cluster, so understanding it makes those chapters shorter.
In everyday life: Look for IC 1182 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 1182 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what IC 1182 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 1182 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is IC 1182 in simple terms?

IC 1182 is a type S0-a lenticular galaxy located in Hercules. It is located 464 million light-years away from the Solar System and was discovered on August 11, 1892, by Stephane Javelle.

Why does IC 1182 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 1182?

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 1182.