astronomy

WISEPA J031325.96+780744.2

WISEPA J031325.96+780744.2 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 WISEPA J031325.96+780744.2 rather than just read about it. In short: WISEPA J031325.96+780744.2 (designation abbreviated to WISE 0313+7807, or WISE J0313+7807) is a brown dwarf of spectral class T8.5, located in constellation Cepheus at approximately 21 light-years from Earth. Discovery WISE 0313+7807 was discovered in 2011 by J.

Key takeaways

WISEPA J031325.96+780744.2 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect WISEPA J031325.96+780744.2 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of WISEPA J031325.96+780744.2 from memory before moving on to harder problems.

Reference excerpt

WISEPA J031325.96+780744.2 (designation abbreviated to WISE 0313+7807, or WISE J0313+7807) is a brown dwarf of spectral class T8.5, located in constellation Cepheus at approximately 21 light-years from Earth.

Discovery WISE 0313+7807 was discovered in 2011 by J. Davy Kirkpatrick et al. from data, collected by Wide-field Infrared Survey Explorer (WISE) Earth-orbiting satellite—NASA infrared-wavelength 40 cm (16 in) space telescope, which mission lasted from December 2009 to February 2011. In 2011 Kirkpatrick et al. published a paper in The Astrophysical Journal Supplement, where they presented discovery of 98 new found by WISE brown dwarf systems with components of spectral types M, L, T and Y, among which also was WISE 0313+7807.

Distance Currently the most accurate distance estimate of WISEPA J031325.96+780744.2 is a trigonometric parallax, published in 2019 by Kirkpatrick et al.: 134.3 ± 3.6 mas, corresponding to 7.4+0.2−0.2 pc, or 24.3+0.7−0.6 ly.

The best estimate is marked in bold.

Notes

References

Illustrations

Worked examples

Example 1 — a first encounter with WISEPA J031325.96+780744.2

Start with the simplest possible case. Write down what WISEPA J031325.96+780744.2 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 WISEPA J031325.96+780744.2 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 WISEPA J031325.96+780744.2 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 WISEPA J031325.96+780744.2

In research: WISEPA J031325.96+780744.2 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 WISEPA J031325.96+780744.2 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: WISEPA J031325.96+780744.2 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Cepheus (constellation), Rogue planets, T-type brown dwarfs, so understanding it makes those chapters shorter.
In everyday life: Look for WISEPA J031325.96+780744.2 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 WISEPA J031325.96+780744.2 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what WISEPA J031325.96+780744.2 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 WISEPA J031325.96+780744.2 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is WISEPA J031325.96+780744.2 in simple terms?

Why does WISEPA J031325.96+780744.2 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 WISEPA J031325.96+780744.2?

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 WISEPA J031325.96+780744.2.