astronomy

Y Tauri

Y Tauri 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 Y Tauri rather than just read about it. In short: Y Tauri is a carbon star located in the constellation Taurus. Parallax measurements by Gaia put it at a distance of approximately 2,170 light-years (670 parsecs).

Key takeaways

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

Reference excerpt

Y Tauri is a carbon star located in the constellation Taurus. Parallax measurements by Gaia put it at a distance of approximately 2,170 light-years (670 parsecs).

In the 19th century, Thomas William Webb and John Birmingham noted that Y Tauri might be a variable star. Thomas William Backhouse confirmed that the star's brightness varies, in 1887. Y Tauri is a semiregular variable star. Its class is SRb, and its primary pulsation cycle lasts 241.5 days. No long secondary period has been identified. It has a radius of 219 R☉, an effective surface temperature of 3,217 K, and a bolometric luminosity of 4,489 L☉. Its mass is calculated to be 4.3 M☉. Y Tauri is losing mass at 4×10−7 M☉/yr, and is surrounded by dust at a temperature of 1,900 K.

References

Illustrations

Worked examples

Example 1 — a first encounter with Y Tauri

Start with the simplest possible case. Write down what Y Tauri 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 Y Tauri 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 Y Tauri 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 Y Tauri

In research: Y Tauri 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 Y Tauri 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: Y Tauri is common in secondary-school and first-year university syllabi. It links to neighbouring topics Asymptotic-giant-branch stars, Bright Star Catalogue objects, Carbon stars, so understanding it makes those chapters shorter.
In everyday life: Look for Y Tauri 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Y Tauri” →

Affiliate

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

How to study Y Tauri in 20 minutes

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

Frequently asked questions

What is Y Tauri in simple terms?

Y Tauri is a carbon star located in the constellation Taurus. Parallax measurements by Gaia put it at a distance of approximately 2,170 light-years (670 parsecs).

Why does Y Tauri 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 Y Tauri?

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 Y Tauri.