astronomy

OGLE-TR-113b

OGLE-TR-113b 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 OGLE-TR-113b rather than just read about it. In short: OGLE-TR-113b is an extrasolar planet orbiting the star OGLE-TR-113. In 2002 the Optical Gravitational Lensing Experiment (OGLE) detected periodic dimming in the star's light curve indicating a transiting, planetary-sized object.

Key takeaways

OGLE-TR-113b belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect OGLE-TR-113b to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of OGLE-TR-113b from memory before moving on to harder problems.

Reference excerpt

OGLE-TR-113b is an extrasolar planet orbiting the star OGLE-TR-113. In 2002 the Optical Gravitational Lensing Experiment (OGLE) detected periodic dimming in the star's light curve indicating a transiting, planetary-sized object. Since low-mass red dwarfs and brown dwarfs may mimic a planet, radial velocity measurements were necessary to calculate the mass of the body. In 2004, the object was proved to be a new transiting extrasolar planet. The planet has a mass 1.32 times that of Jupiter. Since the planet's inclination is known, the value is exact. It orbits the star (OGLE-TR-113) in an extremely close orbit, even closer than the famous planets 51 Pegasi b and HD 209458 b. The planet races around the star every 1.43 days. The radius of the planet is only 9% larger than Jupiter's, despite the heating effect by the star. Planets of its kind are sometimes called "super-hot Jupiters".

See also OGLE-TR-132b List of extrasolar planets OGLE-TR-10b OGLE-TR-111b OGLE-TR-56b OGLE2-TR-L9b

References

External links Media related to OGLE-TR-113 b at Wikimedia Commons

"OGLE-TR-113 b". Exoplanets. Archived from the original on 2012-04-01. Retrieved 2010-01-20.

Illustrations

Worked examples

Example 1 — a first encounter with OGLE-TR-113b

Start with the simplest possible case. Write down what OGLE-TR-113b 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 OGLE-TR-113b 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 OGLE-TR-113b 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 OGLE-TR-113b

In research: OGLE-TR-113b 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 OGLE-TR-113b 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: OGLE-TR-113b is common in secondary-school and first-year university syllabi. It links to neighbouring topics Carina (constellation), Exoplanet stubs, Exoplanets discovered in 2002, so understanding it makes those chapters shorter.
In everyday life: Look for OGLE-TR-113b 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 OGLE-TR-113b in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what OGLE-TR-113b 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 OGLE-TR-113b out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is OGLE-TR-113b in simple terms?

Why does OGLE-TR-113b 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 OGLE-TR-113b?

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 OGLE-TR-113b.