astronomy

K2-146b

K2-146b 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 K2-146b rather than just read about it. In short: K2-146b is a Neptune-like exoplanet discovered in 2018 by the Kepler Space Telescope that orbits a low-mass M-type star in the constellation Cancer. Its host star, K2-146, is orbited by another planet named K2-146c.

Key takeaways

K2-146b belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect K2-146b to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of K2-146b from memory before moving on to harder problems.

Reference excerpt

K2-146b is a Neptune-like exoplanet discovered in 2018 by the Kepler Space Telescope that orbits a low-mass M-type star in the constellation Cancer. Its host star, K2-146, is orbited by another planet named K2-146c. The planet orbits K2-146 at a distance of 0.0248 AU (3,710,000 km), fifteen times closer than Mercury is to the Sun (0.3871 AU). Thus, it orbits very rapidly, with one year lasting just 2.64 days (63 hours), and is far too hot to be habitable, with an equilibrium temperature of 534 K (261 °C; 502 °F).

References

Illustrations

Worked examples

Example 1 — a first encounter with K2-146b

Start with the simplest possible case. Write down what K2-146b 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 K2-146b 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 K2-146b 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 K2-146b

In research: K2-146b 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 K2-146b 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: K2-146b is common in secondary-school and first-year university syllabi. It links to neighbouring topics Cancer (constellation), Exoplanet stubs, Exoplanets discovered by K2, so understanding it makes those chapters shorter.
In everyday life: Look for K2-146b 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.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study K2-146b in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what K2-146b 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 K2-146b out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is K2-146b in simple terms?

Why does K2-146b 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 K2-146b?

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 K2-146b.