astronomy

List of transiting exoplanets

List of transiting exoplanets 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 List of transiting exoplanets rather than just read about it. In short: This is a list of transiting extrasolar planets sorted by orbital periods. As of 2026, 6,160 confirmed exoplanets have been discovered.

Key takeaways

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

Reference excerpt

This is a list of transiting extrasolar planets sorted by orbital periods. As of 2026, 6,160 confirmed exoplanets have been discovered. This list consist of all transiting exoplanets through 2012, and notable discoveries since. All the transiting planets have true masses, radii and most have known inclinations. Radius is determined by how much the star dims during the transit and inclination is determined from Rossiter–McLaughlin effect. True mass is determined by the minimum mass determined from radial velocity observations divided by the sine of inclination. The first known planet to be discovered with the transit method was OGLE-TR-56b. The first planetary transit observed (by already known exoplanet) was caused by HD 209458 b. The most massive transiting exoplanet is KELT-1b which masses 27.23 MJ (making it a brown dwarf) while the least massive is Kepler-42d which masses less than 0.003 MJ or 0.9 M🜨. The largest exoplanet known is HAT-P-32b which is 2.037 RJ. The smallest exoplanet known is also Kepler-42d which is 0.051 RJ or 0.57 R🜨. The densest transiting exoplanet known is CoRoT-3b, which has density of 26.4 g/cm3; the diffusest transiting planet known is Kepler-12b, which has density of only 0.111 g/cm3. Previously, the longest period of any transiting planets was Kepler-1647b, which takes 1107 days to orbit its (double) stars. Only two years later, the longest period of a transiting planet was more than tripled by EPIC 248847494 b, which takes 3650 days to orbit its star. The shortest period is K2-137b, which takes just 0.18 days to orbit its star. There are 60 members of multi-planet systems. Yellow rows denote members of a multi-planet system

See also Lists of exoplanets List of exoplanets discovered by the Kepler space telescope, a list of exoplanets found by the Kepler space telescope which detects transiting exoplanets.

External links and references "Transiting planets". Extrasolar Planets Encyclopaedia. 1995. Retrieved 2012-04-01. "Exoplanets Data Explorer". Retrieved 2011-01-20.

Worked examples

Example 1 — a first encounter with List of transiting exoplanets

Start with the simplest possible case. Write down what List of transiting exoplanets 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 List of transiting exoplanets 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 List of transiting exoplanets 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 List of transiting exoplanets

In research: List of transiting exoplanets 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 List of transiting exoplanets 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: List of transiting exoplanets is common in secondary-school and first-year university syllabi. It links to neighbouring topics Lists of exoplanets, Transiting exoplanets, so understanding it makes those chapters shorter.
In everyday life: Look for List of transiting exoplanets 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 List of transiting exoplanets in 20 minutes

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

Frequently asked questions

What is List of transiting exoplanets in simple terms?

This is a list of transiting extrasolar planets sorted by orbital periods. As of 2026, 6,160 confirmed exoplanets have been discovered.

Why does List of transiting exoplanets 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 List of transiting exoplanets?

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 List of transiting exoplanets.