astronomy

HD 16175

HD 16175 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 16175 rather than just read about it. In short: HD 16175 is a 7th magnitude G-type star with temperature about 6,000 K located 196 light-years (60 parsecs) away in the Andromeda constellation. This star is only visible through binoculars or better equipment; it is also 3.3 times more luminous, is 1.34 times more massive, and has a radius 1.66 times bigger than our local star.

Key takeaways

HD 16175 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 16175 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of HD 16175 from memory before moving on to harder problems.

Reference excerpt

HD 16175 is a 7th magnitude G-type star with temperature about 6,000 K located 196 light-years (60 parsecs) away in the Andromeda constellation. This star is only visible through binoculars or better equipment; it is also 3.3 times more luminous, is 1.34 times more massive, and has a radius 1.66 times bigger than our local star. The star HD 16175 is named Buna. The name was selected in the NameExoWorlds campaign by Ethiopia, during the 100th anniversary of the IAU. Buna is the commonly used word for coffee in Ethiopia.

Planetary system The discovery of the exoplanet HD 16175 b was published in the June 2009 issue of the Publications of the Astronomical Society of the Pacific. The planetary parameters were updated in 2016. In 2023, the inclination and true mass of HD 16175 b were determined via astrometry.

See also HD 96167 List of extrasolar planets

References

External links "Notes for star HD 16175". Extrasolar Planets Encyclopaedia. Archived from the original on November 6, 2007. Retrieved 2008-08-24.

Worked examples

Example 1 — a first encounter with HD 16175

Start with the simplest possible case. Write down what HD 16175 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 16175 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 16175 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 16175

In research: HD 16175 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 16175 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 16175 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Andromeda (constellation), Durchmusterung objects, F-type subgiants, so understanding it makes those chapters shorter.
In everyday life: Look for HD 16175 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 16175 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what HD 16175 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 16175 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is HD 16175 in simple terms?

Why does HD 16175 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 16175?

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 16175.