astronomy

KMT-2024-BLG-0404Lb

KMT-2024-BLG-0404Lb 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 KMT-2024-BLG-0404Lb rather than just read about it. In short: KMT-2024-BLG-0404Lb is a exoplanet located 23,510 light-years away, or approximately 7,210 parsecs, in the constellation Sagittarius. It orbits the late red dwarf KMT-2024-BLG-0404L, which is part of a binary system.

Key takeaways

KMT-2024-BLG-0404Lb belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect KMT-2024-BLG-0404Lb to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of KMT-2024-BLG-0404Lb from memory before moving on to harder problems.

Reference excerpt

KMT-2024-BLG-0404Lb is a exoplanet located 23,510 light-years away, or approximately 7,210 parsecs, in the constellation Sagittarius. It orbits the late red dwarf KMT-2024-BLG-0404L, which is part of a binary system. The planet was discovered in 2025 using the gravitational microlensing method.

Properties The object is a Neptune-like planet with a mass of 17.3+25.5−8.8 M🜨. Its projected distance from the star is 0.34+0.04−0.05 AU. The NASA Exoplanet Archive estimated the planet's radius at 0.386 RJ, or 4.24 R🜨. To ensure dynamical stability in the system, the planet should orbit only one of the host stars, and the separation between the binary components must be considerably greater than the distance from the planet to its host. This exoplanet is unique because it orbits not a single star, but a close binary pair consisting of a late M-type dwarf and a brown dwarf, separated by 0.85±0.11 AU. This is the first such discovery.

See also List of exoplanets discovered in 2025 List of extrasolar planets KMTNet Optical Gravitational Lensing Experiment or OGLE

References

Illustrations

Worked examples

Example 1 — a first encounter with KMT-2024-BLG-0404Lb

Start with the simplest possible case. Write down what KMT-2024-BLG-0404Lb 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 KMT-2024-BLG-0404Lb 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 KMT-2024-BLG-0404Lb 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 KMT-2024-BLG-0404Lb

In research: KMT-2024-BLG-0404Lb 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 KMT-2024-BLG-0404Lb 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: KMT-2024-BLG-0404Lb is common in secondary-school and first-year university syllabi. It links to neighbouring topics Exoplanets detected by microlensing, Exoplanets discovered in 2025, Giant planets, so understanding it makes those chapters shorter.
In everyday life: Look for KMT-2024-BLG-0404Lb 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 KMT-2024-BLG-0404Lb in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what KMT-2024-BLG-0404Lb 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 KMT-2024-BLG-0404Lb out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is KMT-2024-BLG-0404Lb in simple terms?

Why does KMT-2024-BLG-0404Lb 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 KMT-2024-BLG-0404Lb?

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 KMT-2024-BLG-0404Lb.