astronomy

CD−34 8618

CD−34 8618 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 CD−34 8618 rather than just read about it. In short: CD−34°8618, also known as KELT-13 or WASP-167, is a yellowish-white hued star located in the southern constellation of Centaurus. It has an apparent magnitude of 10.52, making it readily visible in medium sized telescopes, but not to the naked eye.

Key takeaways

CD−34 8618 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect CD−34 8618 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of CD−34 8618 from memory before moving on to harder problems.

Reference excerpt

CD−34°8618, also known as KELT-13 or WASP-167, is a yellowish-white hued star located in the southern constellation of Centaurus. It has an apparent magnitude of 10.52, making it readily visible in medium sized telescopes, but not to the naked eye. Based on parallax measurements from the Gaia spacecraft, the object is estimated to be approximately 1,350 light years away from the Solar System. It appears to be drifting closer to it, having a radial velocity of −0.53 km/s.

Description WASP-167 has a stellar classification of F1 V, indicating that it is an ordinary F-type main-sequence star that is generating energy via hydrogen fusion at its core. At present it has 1.59 times the mass of the Sun and 1.94 times the radius of the Sun. It radiates 8.34 times the luminosity of the Sun from its photosphere at an effective temperature of 6,909 K. WASP-167 has an iron abundance 26% above solar levels, making it metal enriched — common among planetary hosts. The object has completed 63% of its main sequence lifetime at an age of 1 billion years. Like many hot stars, WASP-167 spins rapidly, having a projected rotational velocity of 52 km/s, meaning it completes a rotation under 2 days.

Planetary system A Hot Jupiter was discovered in a tight, 2 day retrograde orbit the star by the SuperWASP and the KELT. WASP-167 was observed to have non-radial pulsations, which might be caused by the planet's close orbit. It has an equilibrium temperature of 2,329±64 K and is nearly tidally locked, similar to Mercury.

References

Worked examples

Example 1 — a first encounter with CD−34 8618

Start with the simplest possible case. Write down what CD−34 8618 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 CD−34 8618 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 CD−34 8618 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 CD−34 8618

In research: CD−34 8618 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 CD−34 8618 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: CD−34 8618 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Centaurus, Durchmusterung objects, F-type main-sequence stars, so understanding it makes those chapters shorter.
In everyday life: Look for CD−34 8618 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 CD−34 8618 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what CD−34 8618 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 CD−34 8618 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is CD−34 8618 in simple terms?

Why does CD−34 8618 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 CD−34 8618?

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 CD−34 8618.