astronomy

LHS 288

LHS 288 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 LHS 288 rather than just read about it. In short: LHS 288 (Luyten 143-23) is a red dwarf star in the constellation Carina. At a distance of 15.759 light-years (4.831 parsecs), it is among the nearest stars, and is the closest in the constellation.

Key takeaways

LHS 288 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect LHS 288 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of LHS 288 from memory before moving on to harder problems.

Reference excerpt

LHS 288 (Luyten 143-23) is a red dwarf star in the constellation Carina. At a distance of 15.759 light-years (4.831 parsecs), it is among the nearest stars, and is the closest in the constellation. Despite its closeness, the star is far too faint to be seen with the unaided eye, with an apparent magnitude of 13.92. The spectrum of this star matches a spectral class of M5V, similar to the class of Proxima Centauri. This star has an estimated 0.109 times the Sun's mass, 0.126 times the Sun's radius, and just 1.15% of the solar luminosity. At an effective temperature of 2,760±150 K, it radiates a reddish hue. A 2007 study suggested that LHS 288 may harbour a planet with a mass of 2.4 MJ based on astrometric observations, but the possibility that it passed over an undetected faint star, which could mimic the astrometric variation caused by a planet, could not be eliminated.

References

External links Knowing Our Neighbors: Fundamental Properties of Nearby Stars by Jennifer Bartlett SIMBAD astronomical database on LHS 288

Worked examples

Example 1 — a first encounter with LHS 288

Start with the simplest possible case. Write down what LHS 288 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 LHS 288 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 LHS 288 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 LHS 288

In research: LHS 288 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 LHS 288 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: LHS 288 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Carina (constellation), Gliese and GJ objects, Local Bubble, so understanding it makes those chapters shorter.
In everyday life: Look for LHS 288 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 LHS 288 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what LHS 288 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 LHS 288 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is LHS 288 in simple terms?

LHS 288 (Luyten 143-23) is a red dwarf star in the constellation Carina. At a distance of 15.759 light-years (4.831 parsecs), it is among the nearest stars, and is the closest in the constellation.

Why does LHS 288 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 LHS 288?

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 LHS 288.