astronomy

OGLE-TR-132

OGLE-TR-132 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-132 rather than just read about it. In short: OGLE-TR-132 is a distant magnitude-15.72 star in the star fields of the constellation Carina. Because of its great distance, about 4,900 light-years, and location in the crowded field it was not notable in any way.

Key takeaways

OGLE-TR-132 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-132 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of OGLE-TR-132 from memory before moving on to harder problems.

Reference excerpt

OGLE-TR-132 is a distant magnitude-15.72 star in the star fields of the constellation Carina. Because of its great distance, about 4,900 light-years, and location in the crowded field it was not notable in any way. Because its apparent brightness changes when one of its planets transits, the star has been given the variable star designation V742 Carinae. The spectral type of the star is type F. A yellow-white, very metal-rich subgiant, it is slightly hotter and more luminous than the Sun.

Planetary system In 2003 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, OGLE-TR-132b.

See also Optical Gravitational Lensing Experiment OGLE-TR-113 Lists of exoplanets

References

External links "OGLE-TR-132". Exoplanets. Archived from the original on 2012-04-01. Retrieved 2009-04-28.

Illustrations

Worked examples

Example 1 — a first encounter with OGLE-TR-132

Start with the simplest possible case. Write down what OGLE-TR-132 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-132 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-132 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-132

In research: OGLE-TR-132 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-132 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-132 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Carina (constellation), F-type main-sequence stars, Objects with variable star designations, so understanding it makes those chapters shorter.
In everyday life: Look for OGLE-TR-132 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-132 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what OGLE-TR-132 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-132 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is OGLE-TR-132 in simple terms?

Why does OGLE-TR-132 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-132?

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-132.