astronomy

WASP-23b

WASP-23b 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 WASP-23b rather than just read about it. In short: WASP-23b is a hot Jupiter class exoplanet that orbits around the star WASP-23, a K-type main sequence star that is located 676 light years from Earth in the constellation of Puppis. It is similar to Jupiter in its physical parameters with a mass of 0.88 Jupiter masses and a radius of 0.96 Jupiter radii.

Key takeaways

WASP-23b belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect WASP-23b to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of WASP-23b from memory before moving on to harder problems.

Reference excerpt

WASP-23b is a hot Jupiter class exoplanet that orbits around the star WASP-23, a K-type main sequence star that is located 676 light years from Earth in the constellation of Puppis. It is similar to Jupiter in its physical parameters with a mass of 0.88 Jupiter masses and a radius of 0.96 Jupiter radii. It orbits at a distance of 0.0376 AU taking 2.94 days to complete an orbit. The orbit has an eccentricity of 0.062 and an inclination of 88.36°.

Discovery WASP-23b was discovered by the WASP-south transit survey (WASP) via the transit method in the year 2010 by Triaud et al. 2011. The detection was confirmed photometrically and spectroscopically by the Swiss Euler telescope. Spectra were obtained during the transit of WASP-23b with the HARPS spectrograph and the Rossiter-McLaughlin effect was detected despite its small amplitude.

References

Worked examples

Example 1 — a first encounter with WASP-23b

Start with the simplest possible case. Write down what WASP-23b 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 WASP-23b 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 WASP-23b 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 WASP-23b

In research: WASP-23b 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 WASP-23b 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: WASP-23b is common in secondary-school and first-year university syllabi. It links to neighbouring topics Exoplanets discovered by WASP, Exoplanets discovered in 2010, Hot Jupiters, so understanding it makes those chapters shorter.
In everyday life: Look for WASP-23b 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 WASP-23b in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what WASP-23b 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 WASP-23b out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is WASP-23b in simple terms?

Why does WASP-23b 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 WASP-23b?

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 WASP-23b.