astronomy

KOI-4878.01

KOI-4878.01 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 KOI-4878.01 rather than just read about it. In short: KOI-4878.01 is an exoplanet candidate that orbits the G-type main-sequence star KOI-4878. It is 1,120 light-years (344 pc) distant from Earth.

Key takeaways

KOI-4878.01 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect KOI-4878.01 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of KOI-4878.01 from memory before moving on to harder problems.

Reference excerpt

KOI-4878.01 is an exoplanet candidate that orbits the G-type main-sequence star KOI-4878. It is 1,120 light-years (344 pc) distant from Earth. The features of the planet are very similar to that of Earth, and if it is confirmed, it would be one of the most Earth-like planets found. The orbital period of the exoplanet is around 449 days. It is located within the habitable zone of its parent star – a region where water can exist at liquid state.

Host star KOI-4878 is a G-type main-sequence star, more precisely of spectral class G4V. It has an apparent magnitude of 12.37 and is located in the constellation of Draco. The star has a mass of 1.009±0.129 M☉, a radius of 1.131±0.059 R☉ and an effective temperature of 5674±125 K. Its age is estimated at 6.1±2.5 billion years, older than the Solar System.

Exoplanet detection An analysis of the Kepler space telescope's data from its first to the twelve quarter revealed three possible transit events equally spaced in time. A post-analysis in the Sixteen quarter showed that the events happened within a period of 449 days, they had a duration of 12 and half hours and a transit depth of 94 ppm.

Characteristics

Size, mass, temperature KOI-4878.01 has a slightly larger radius than the Earth: 1.02 Earth radii. Its mass has not been measured, but it is estimated to be somewhere between 0.4 - 3.0 Earth masses; most likely around 0.99 Earth masses. The planet has an equilibrium temperature of 257 K (−16 °C; 3 °F). For reference, the equilibrium temperature of the Earth is 255 K (−18 °C; −1 °F).

Habitability The estimated features of the planet are similar to an Earth analog. It completes an orbit around its host star every 449 Earth days. Based on this, KOI-4878.01 should be in the habitable zone of the star. The age of KOI-4878, and consequently the age of KOI-4878.01, is 6.1±2.5 billion years, suggesting that it had more time for life to evolve than Earth did. Because of this, some astronomers speculate that it may be more suitable for intelligent life than Earth.

See also List of potentially habitable exoplanets Superhabitable world KOI-5715.01 Kepler-160 Kepler-69c

References

Illustrations

Worked examples

Example 1 — a first encounter with KOI-4878.01

Start with the simplest possible case. Write down what KOI-4878.01 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 KOI-4878.01 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 KOI-4878.01 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 KOI-4878.01

In research: KOI-4878.01 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 KOI-4878.01 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: KOI-4878.01 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Exoplanet candidates, Exoplanets discovered by the Kepler space telescope, so understanding it makes those chapters shorter.
In everyday life: Look for KOI-4878.01 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 KOI-4878.01 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what KOI-4878.01 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 KOI-4878.01 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is KOI-4878.01 in simple terms?

KOI-4878.01 is an exoplanet candidate that orbits the G-type main-sequence star KOI-4878. It is 1,120 light-years (344 pc) distant from Earth.

Why does KOI-4878.01 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 KOI-4878.01?

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 KOI-4878.01.