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astronomy

Kaoru Ikeya

Kaoru Ikeya 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 Kaoru Ikeya rather than just read about it. In short: Kaoru Ikeya (池谷 薫, Ikeya Kaoru; born 1943) is a Japanese amateur astronomer who discovered a number of comets. As a young adult, Ikeya lived near Lake Hamana and worked for a piano factory.

Key takeaways

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

Reference excerpt

Kaoru Ikeya (池谷 薫, Ikeya Kaoru; born 1943) is a Japanese amateur astronomer who discovered a number of comets. As a young adult, Ikeya lived near Lake Hamana and worked for a piano factory. During his employment there, he made his first discovery in 1963 with an optical telescope he built himself within his low budget. Two years later, he discovered the bright comet C/1965 S1 (Ikeya-Seki). Ikeya discovered the periodic comet 153P/Ikeya-Zhang on February 1, 2002, in Mori, Hokkaidō. The asteroid 4037 Ikeya is also named after Ikeya. On November 13, 2010, Ikeya and Shigeki Murakami co-discovered the comet P/2010 V1, now known as 332P/Ikeya-Murakami, using an optical telescope, rare in an era with access to digital imaging technology. Ikeya contributed his skill to the perfectly ground optics used in the construction of the Pentax 40 cm Cassegrain reflector telescope installed at the Singapore Science Centre Observatory in March, 1989.

References

Worked examples

Example 1 — a first encounter with Kaoru Ikeya

Start with the simplest possible case. Write down what Kaoru Ikeya 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 Kaoru Ikeya 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 Kaoru Ikeya 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 Kaoru Ikeya

In research
Kaoru Ikeya 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 Kaoru Ikeya 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
Kaoru Ikeya is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1943 births, 20th-century Japanese astronomers, 21st-century Japanese astronomers, so understanding it makes those chapters shorter.
In everyday life
Look for Kaoru Ikeya 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 Kaoru Ikeya in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Kaoru Ikeya means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Kaoru Ikeya out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Kaoru Ikeya in simple terms?

Kaoru Ikeya (池谷 薫, Ikeya Kaoru; born 1943) is a Japanese amateur astronomer who discovered a number of comets. As a young adult, Ikeya lived near Lake Hamana and worked for a piano factory.

Why does Kaoru Ikeya 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 Kaoru Ikeya?

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 Kaoru Ikeya.

Tags

  • 1943 births
  • 20th-century Japanese astronomers
  • 21st-century Japanese astronomers
  • Amateur astronomers
  • Discoverers of comets
  • Living people
  • Scientists from Shizuoka Prefecture

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