astronomy

TOI-1117

TOI-1117 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 TOI-1117 rather than just read about it. In short: TOI-1117 is a single G-type star in the constellation of Pavo. It has approximately 0.97 times the mass and 1.05 times the radius of the Sun, with a surface temperature of 5,635±62 K and a spectral type of G7.

Key takeaways

TOI-1117 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect TOI-1117 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of TOI-1117 from memory before moving on to harder problems.

Reference excerpt

TOI-1117 is a single G-type star in the constellation of Pavo. It has approximately 0.97 times the mass and 1.05 times the radius of the Sun, with a surface temperature of 5,635±62 K and a spectral type of G7. TOI-1117 is too faint to be visible to the naked eye. Based upon parallax measurements, it is located 544 light-years (166.8 parsecs) from the Sun. The object is drifting towards the Sun with a radial velocity of −24.73 km/s.

Planetary system In June of 2025, three exoplanets (b, c and d) were identified via the radial velocity method. An additional planet was discovered using the transit technique. None of these planets orbit in the habitable zone; all are believed to be sub-Neptune planets.

See also List of exoplanets discovered in 2025 Exoplanet sub-Neptune Main Sequence Star

References

Illustrations

Worked examples

Example 1 — a first encounter with TOI-1117

Start with the simplest possible case. Write down what TOI-1117 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 TOI-1117 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 TOI-1117 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 TOI-1117

In research: TOI-1117 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 TOI-1117 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: TOI-1117 is common in secondary-school and first-year university syllabi. It links to neighbouring topics G-type main-sequence stars, Main-sequence-star stubs, Pavo (constellation), so understanding it makes those chapters shorter.
In everyday life: Look for TOI-1117 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 TOI-1117 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what TOI-1117 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 TOI-1117 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is TOI-1117 in simple terms?

Why does TOI-1117 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 TOI-1117?

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 TOI-1117.