science

WD 0346+247

WD 0346+247 is a science 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 WD 0346+247 rather than just read about it. In short: WD 0346+247 is a white dwarf in the ecliptic constellation of Taurus. It was discovered in 1997 when examination of photographs taken for a survey of brown dwarfs in the Pleiades revealed a faint star with high proper motion.

Key takeaways

WD 0346+247 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect WD 0346+247 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of WD 0346+247 from memory before moving on to harder problems.

Reference excerpt

WD 0346+247 is a white dwarf in the ecliptic constellation of Taurus. It was discovered in 1997 when examination of photographs taken for a survey of brown dwarfs in the Pleiades revealed a faint star with high proper motion. It is one of the coolest white dwarfs known, with an effective temperature estimated to be approximately 3,800 K, equivalent to a spectral type of M0. Although referred to as WD 0346+246 in the discovery paper, it is more correctly designated WD 0346+247. Recent studies using NASA's Spitzer Space Telescope and MDM Observatory's 2.4-meter telescope (near Tucson, Arizona, USA) shows that this white dwarf (together with another one: SDSS J110217.48+411315.4) has a low (for white dwarfs) surface temperature between 3,700 and 3,800 K due to it being 11 to 12 billion years old.

References

Worked examples

Example 1 — a first encounter with WD 0346+247

Start with the simplest possible case. Write down what WD 0346+247 claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 WD 0346+247 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 WD 0346+247 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 WD 0346+247

In research: WD 0346+247 appears in science 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 WD 0346+247 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: WD 0346+247 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Taurus (constellation), White dwarfs, so understanding it makes those chapters shorter.
In everyday life: Look for WD 0346+247 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 WD 0346+247 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what WD 0346+247 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 WD 0346+247 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is WD 0346+247 in simple terms?

Why does WD 0346+247 matter?

Because it connects several science 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 WD 0346+247?

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 WD 0346+247.