astronomy

HD 110956

HD 110956 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 110956 rather than just read about it. In short: HD 110956 is a single star in the southern constellation of Crux. It is faintly visible to the naked eye with an apparent visual magnitude of 4.62.

Key takeaways

HD 110956 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 110956 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of HD 110956 from memory before moving on to harder problems.

Reference excerpt

HD 110956 is a single star in the southern constellation of Crux. It is faintly visible to the naked eye with an apparent visual magnitude of 4.62. The distance to this star is approximately 385 light years based on parallax and it is drifting further away with a radial velocity of 15.5 km/s. It is a probable member of the Lower Centaurus–Crux subgroup of the Scorpius–Centaurus association. This is a B-type main-sequence star with a stellar classification of B2/3V. It is a young star, estimated to be about 12.7 million years old, with 6.5 times the mass of the Sun. The star is spinning with a projected rotational velocity of 22 km/s. It is radiating around 1,500 times the luminosity of the Sun from its photosphere at an effective temperature of 19,055 K. There are multiple visual companions positioned near HD 110956. The brightest of these, with a visual magnitude of 8.93, is located at an angular separation of 51.1″ along a position angle of 166°, as of 2020. This companion was reported by J. F. W. Herschel in 1834. It is an α2 CVn variable with the designation BR Cru.

References

Illustrations

Worked examples

Example 1 — a first encounter with HD 110956

Start with the simplest possible case. Write down what HD 110956 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 110956 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 110956 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 110956

In research: HD 110956 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 110956 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 110956 is common in secondary-school and first-year university syllabi. It links to neighbouring topics B-type main-sequence stars, Bright Star Catalogue objects, Crux, so understanding it makes those chapters shorter.
In everyday life: Look for HD 110956 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 110956 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what HD 110956 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 110956 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is HD 110956 in simple terms?

HD 110956 is a single star in the southern constellation of Crux. It is faintly visible to the naked eye with an apparent visual magnitude of 4.62.

Why does HD 110956 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 110956?

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 110956.