astronomy

HATS-11b

HATS-11b 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 HATS-11b rather than just read about it. In short: HATS-11b, also known as EPIC 216414930b, is a confirmed exoplanet, or exosolar planet, discovered in 2016 and has been described as similar to Jupiter. It orbits the star HATS-11.

Key takeaways

HATS-11b belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect HATS-11b to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of HATS-11b from memory before moving on to harder problems.

Reference excerpt

HATS-11b, also known as EPIC 216414930b, is a confirmed exoplanet, or exosolar planet, discovered in 2016 and has been described as similar to Jupiter. It orbits the star HATS-11.

Discovery HATS-11b was discovered in 2016, using the primary transit method, by the Hungarian Automated Telescope Network (HATNet) in the HATSouth survey, which aims to discover exoplanets using the transit method. Since 2009 (when the HATSouth project began), 61 exoplanets have been discovered, as of 10th Feb 2020. The mass of HATS-11b was found using the radial velocity method.

Characteristics HATS-11b has been described as similar to Jupiter and orbits a low metallicity star which is about 2,955 light-years (906 parsecs) distant. This planet has an orbital period of around 3.6 Earth days and its temperature has been calculated to be 1,637 K (1,364 °C). HATS-11b has a mass of 0.85MJ and a radius of 1.49RJ. The planet's orbital eccentricity is less than 0.34, which is an elliptical orbit.

Star HATS-11b orbits around the star HATS-11. HATS-11 has a solar mass of 1M☉ and has a solar radius of 1.44R☉. It is a type G0 star, of about medium heat. HATS-11 is very metal-poor; it has a metallicity of around -3.09 [Fe/H], which is roughly one-thousandth the abundance of iron relative to the Sun. The star has an effective temperature of around 6,060 K (5,790 °C). HATS-11 is roughly 7.7 billion years old and has an apparent magnitude of 14, which is not visible with the naked eye.

See also HATNet Project Lists of exoplanets Methods of detecting exoplanets

References

Worked examples

Example 1 — a first encounter with HATS-11b

Start with the simplest possible case. Write down what HATS-11b 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 HATS-11b 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 HATS-11b 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 HATS-11b

In research: HATS-11b 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 HATS-11b 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: HATS-11b is common in secondary-school and first-year university syllabi. It links to neighbouring topics Exoplanets discovered by HATNet, Exoplanets discovered in 2016, Transiting exoplanets, so understanding it makes those chapters shorter.
In everyday life: Look for HATS-11b 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “HATS-11b” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study HATS-11b in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what HATS-11b 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 HATS-11b out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is HATS-11b in simple terms?

HATS-11b, also known as EPIC 216414930b, is a confirmed exoplanet, or exosolar planet, discovered in 2016 and has been described as similar to Jupiter. It orbits the star HATS-11.

Why does HATS-11b 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 HATS-11b?

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 HATS-11b.