astronomy

S/2003 J 24

S/2003 J 24 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 S/2003 J 24 rather than just read about it. In short: S/2003 J 24 (temporarily designated EJc0061) is a moon of Jupiter, discovered by Scott S. Sheppard et al. in 2003.

Key takeaways

S/2003 J 24 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect S/2003 J 24 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of S/2003 J 24 from memory before moving on to harder problems.

Reference excerpt

S/2003 J 24 (temporarily designated EJc0061) is a moon of Jupiter, discovered by Scott S. Sheppard et al. in 2003. It was independently found by amateur astronomer K Ly, who reported it on June 30, 2021. It was formally announced on 15 November 2021 in the MPEC. Ly had previously recovered four "lost" moons of Jupiter in 2020: S/2003 J 23, S/2003 J 12, S/2003 J 4, and Jupiter LXXIII. Based on 90 observations with an absolute magnitude (H) of 16.7, the moon is about 2–3 km in diameter. S/2003 J 24 orbits Jupiter at an average distance of 23,088,000 km (0.15433 AU) in 715.4 days, at an inclination of 162° to the ecliptic, in a retrograde direction and with an eccentricity of 0.25. It belongs to the Carme group, made up of irregular retrograde moons orbiting Jupiter at a distance ranging between 23 and 24 million km and at an inclination of about 165°.

References

External links Discovery announcement at the Minor Planets Mailing List

Worked examples

Example 1 — a first encounter with S/2003 J 24

Start with the simplest possible case. Write down what S/2003 J 24 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 S/2003 J 24 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 S/2003 J 24 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 S/2003 J 24

In research: S/2003 J 24 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 S/2003 J 24 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: S/2003 J 24 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Astronomical objects discovered in 2021, Carme group, Irregular satellites, so understanding it makes those chapters shorter.
In everyday life: Look for S/2003 J 24 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 S/2003 J 24 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what S/2003 J 24 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 S/2003 J 24 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is S/2003 J 24 in simple terms?

S/2003 J 24 (temporarily designated EJc0061) is a moon of Jupiter, discovered by Scott S. Sheppard et al. in 2003.

Why does S/2003 J 24 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 S/2003 J 24?

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 S/2003 J 24.