astronomy

K2-415b

K2-415b 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 K2-415b rather than just read about it. In short: K2-415b is an Earth-sized exoplanet located 72 light-years from Earth orbiting the red dwarf star K2-415. Background The planet was found using data from the NASA Kepler Space Telescope, K2, and the Transiting Exoplanet Survey Satellite.

Key takeaways

K2-415b belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect K2-415b to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of K2-415b from memory before moving on to harder problems.

Reference excerpt

K2-415b is an Earth-sized exoplanet located 72 light-years from Earth orbiting the red dwarf star K2-415.

Background The planet was found using data from the NASA Kepler Space Telescope, K2, and the Transiting Exoplanet Survey Satellite. K2-415b was discovered in February 2023. K2-415b is approximately 1.015 times the radius of Earth and is less than 7.5 times the mass of Earth. It does not orbit its star within its proposed habitable zone and orbits at a distance of around 0.027 AU and completes one orbit around its star every 4.018 days; because of this, the average surface temperature of K2-415b is estimated to be 400 K (260 °F; 127 °C).

See also List of exoplanets List of exoplanets discovered in 2023

References

Worked examples

Example 1 — a first encounter with K2-415b

Start with the simplest possible case. Write down what K2-415b 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 K2-415b 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 K2-415b 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 K2-415b

In research: K2-415b 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 K2-415b 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: K2-415b is common in secondary-school and first-year university syllabi. It links to neighbouring topics Exoplanet stubs, Exoplanets discovered by K2, Exoplanets discovered by TESS, so understanding it makes those chapters shorter.
In everyday life: Look for K2-415b 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 K2-415b in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what K2-415b 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 K2-415b out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is K2-415b in simple terms?

K2-415b is an Earth-sized exoplanet located 72 light-years from Earth orbiting the red dwarf star K2-415. Background The planet was found using data from the NASA Kepler Space Telescope, K2, and the Transiting Exoplanet Survey Satellite.

Why does K2-415b 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 K2-415b?

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 K2-415b.