science

HIP 94292

HIP 94292 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 HIP 94292 rather than just read about it. In short: HIP 94292 (commonly referred to by its KIC designation KIC 9145955) is a G-type red giant branch star located 1351 light years from Earth in the northern constellation of Lyra. It is 1.24 times more massive than the Sun and has a radius of 5.636 solar radii.

Key takeaways

HIP 94292 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect HIP 94292 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of HIP 94292 from memory before moving on to harder problems.

Reference excerpt

HIP 94292 (commonly referred to by its KIC designation KIC 9145955) is a G-type red giant branch star located 1351 light years from Earth in the northern constellation of Lyra. It is 1.24 times more massive than the Sun and has a radius of 5.636 solar radii. It has a small scale magnetic field of 65 Gauss that is largely concentrated in the photosphere of the star.

Description It has an apparent magnitude of 10.05, which makes it too faint to observe with the naked eye, but readily visible through a 35-mm aperture telescope. Gaia EDR3 parallax measurements place the star some 1,351 light-years (414 parsecs) distant, and it is receding with a heliocentric radial velocity of +17.4 km/s. HIP 94292 is an evolved giant star with a spectral type of G8III. It is currently on the red-giant branch (RGB), undergoing the CNO cycle within a hydrogen shell surrounding an inert core made of helium. With a radius 5.6 times that of the Sun and an effective temperature just over 5,000 K (4,730 °C; 8,540 °F), it radiates 18.8 times the luminosity of the Sun from its photosphere. Due to its higher mass of 1.24 M☉, it is further evolved than the Sun despite a similar age of 4.61±0.23 billion years. The helium core has been precisely measured to have a mass of 0.210±0.002 M☉ and a radius of 0.0307±0.0002 R☉. As expected of RGB stars, HIP 94292 exhibits solar-like oscillations.

Magnetic field HIP 94292 was found to have small scale magnetic fields with an upper limit of around 65 Gauss that concentrates at a height of 13,100 kilometers in the photosphere of the star.

See also KIC 9970396: a similar red giant in an eclipsing binary.

References

Illustrations

Worked examples

Example 1 — a first encounter with HIP 94292

Start with the simplest possible case. Write down what HIP 94292 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 HIP 94292 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 HIP 94292 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 HIP 94292

In research: HIP 94292 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 HIP 94292 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: HIP 94292 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Durchmusterung objects, G-type giants, Hipparcos objects, so understanding it makes those chapters shorter.
In everyday life: Look for HIP 94292 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 HIP 94292 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what HIP 94292 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 HIP 94292 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is HIP 94292 in simple terms?

Why does HIP 94292 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 HIP 94292?

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 HIP 94292.