astronomy

HD 160342

HD 160342 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 HD 160342 rather than just read about it. In short: HD 160342 is a star in the southern constellation of Ara. HD 160342 is its Henry Draper Catalogue designation.

Key takeaways

HD 160342 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect HD 160342 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of HD 160342 from memory before moving on to harder problems.

Reference excerpt

HD 160342 is a star in the southern constellation of Ara. HD 160342 is its Henry Draper Catalogue designation. It has an apparent visual magnitude of 6.35, making it very faintly visible to the naked eye under ideal observing conditions. Based upon parallax measurements, is approximately 960 light-years (293 parsecs) distant from Earth. In 1971, P. M. Corben announced that HD 160342 is a variable star, a discovery made using a telescope equipped with a photoelectric photometer at the Royal Observatory in South Africa. It was given its variable star designation, V626 Arae, in 1973. With a stellar classification of M3 III, this is an evolved red giant that is on the asymptotic giant branch. It is a variable star that is classified as irregular, although changes in brightness of 0.1127 magnitudes at the rate of 0.37943 cycles per day (once every 2.6 days) have been detected in Hipparcos photometry.

References

External links HR 6576 Image HD 160342

Illustrations

Worked examples

Example 1 — a first encounter with HD 160342

Start with the simplest possible case. Write down what HD 160342 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 HD 160342 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 HD 160342 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 HD 160342

In research: HD 160342 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 HD 160342 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: HD 160342 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Ara (constellation), Bright Star Catalogue objects, Durchmusterung objects, so understanding it makes those chapters shorter.
In everyday life: Look for HD 160342 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 HD 160342 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what HD 160342 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 HD 160342 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is HD 160342 in simple terms?

HD 160342 is a star in the southern constellation of Ara. HD 160342 is its Henry Draper Catalogue designation.

Why does HD 160342 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 HD 160342?

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 HD 160342.