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MOA-2008-BLG-310Lb

MOA-2008-BLG-310Lb 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 MOA-2008-BLG-310Lb rather than just read about it. In short: MOA-2008-BLG-310Lb is an extrasolar planet which orbits probably the late K-type star MOA-2008-BLG-310L, located at least 20000 light years away in the constellation Scorpius. This planet has mass 23% of Jupiter or 77% of Saturn and orbits at 1.25 AU from the star.

Key takeaways

  • MOA-2008-BLG-310Lb belongs to astronomy; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect MOA-2008-BLG-310Lb to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of MOA-2008-BLG-310Lb from memory before moving on to harder problems.

Reference excerpt

MOA-2008-BLG-310Lb is an extrasolar planet which orbits probably the late K-type star MOA-2008-BLG-310L, located at least 20000 light years away in the constellation Scorpius. This planet has mass 23% of Jupiter or 77% of Saturn and orbits at 1.25 AU from the star. This planet was discovered by using the gravitational microlensing method on August 4, 2009. As it is typical for exoplanets detected by microlensing method, the orbital period and eccentricity are not determined.

See also MOA-2007-BLG-192Lb OGLE-2005-BLG-390Lb

References

Janczak, Julia; et al. (2010). "Sub-Saturn Planet MOA-2008-BLG-310Lb: Likely To Be In The Galactic Bulge". The Astrophysical Journal. 711 (2): 731–743. arXiv:0908.0529. Bibcode:2010ApJ...711..731J. doi:10.1088/0004-637X/711/2/731. S2CID 119217995.web preprint

Worked examples

Example 1 — a first encounter with MOA-2008-BLG-310Lb

Start with the simplest possible case. Write down what MOA-2008-BLG-310Lb 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 MOA-2008-BLG-310Lb 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 MOA-2008-BLG-310Lb 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 MOA-2008-BLG-310Lb

In research
MOA-2008-BLG-310Lb 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 MOA-2008-BLG-310Lb 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
MOA-2008-BLG-310Lb is common in secondary-school and first-year university syllabi. It links to neighbouring topics Exoplanets detected by microlensing, Exoplanets discovered in 2009, Giant planets, so understanding it makes those chapters shorter.
In everyday life
Look for MOA-2008-BLG-310Lb 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 MOA-2008-BLG-310Lb in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what MOA-2008-BLG-310Lb 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 MOA-2008-BLG-310Lb out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is MOA-2008-BLG-310Lb in simple terms?

MOA-2008-BLG-310Lb is an extrasolar planet which orbits probably the late K-type star MOA-2008-BLG-310L, located at least 20000 light years away in the constellation Scorpius. This planet has mass 23% of Jupiter or 77% of Saturn and orbits at 1.25 AU from the star.

Why does MOA-2008-BLG-310Lb 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 MOA-2008-BLG-310Lb?

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 MOA-2008-BLG-310Lb.

Tags

  • Exoplanets detected by microlensing
  • Exoplanets discovered in 2009
  • Giant planets
  • Scorpius

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