science

WISE J004945.61+215120.0

WISE J004945.61+215120.0 is a science 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 WISE J004945.61+215120.0 rather than just read about it. In short: WISE J004945.61+215120.0 is a brown dwarf of spectral class T8.5, located in constellation Andromeda at approximately 24 light-years from Earth. Discovery WISE J004945.61+215120.0 was discovered in 2012 by Mace 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…

Key takeaways

WISE J004945.61+215120.0 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect WISE J004945.61+215120.0 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of WISE J004945.61+215120.0 from memory before moving on to harder problems.

Reference excerpt

WISE J004945.61+215120.0 is a brown dwarf of spectral class T8.5, located in constellation Andromeda at approximately 24 light-years from Earth.

Discovery WISE J004945.61+215120.0 was discovered in 2012 by Mace 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 2013, the discovery paper was published.

Distance Currently the most accurate distance estimate of WISE J004945.61+215120.0 is a trigonometric parallax, published in 2019 by Kirkpatrick et al.: 7.1+0.1−0.1 pc, or 23.3+0.4−0.4 ly.

References

Illustrations

Worked examples

Example 1 — a first encounter with WISE J004945.61+215120.0

Start with the simplest possible case. Write down what WISE J004945.61+215120.0 claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 WISE J004945.61+215120.0 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 WISE J004945.61+215120.0 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 WISE J004945.61+215120.0

In research: WISE J004945.61+215120.0 appears in science 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 WISE J004945.61+215120.0 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: WISE J004945.61+215120.0 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Andromeda (constellation), Brown dwarfs, T-type brown dwarfs, so understanding it makes those chapters shorter.
In everyday life: Look for WISE J004945.61+215120.0 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 WISE J004945.61+215120.0 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what WISE J004945.61+215120.0 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 WISE J004945.61+215120.0 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is WISE J004945.61+215120.0 in simple terms?

WISE J004945.61+215120.0 is a brown dwarf of spectral class T8.5, located in constellation Andromeda at approximately 24 light-years from Earth. Discovery WISE J004945.61+215120.0 was discovered in 2012 by Mace et al. from data, collected by Wide-field Infrared Survey Explorer (WISE) Earth-orbiting…

Why does WISE J004945.61+215120.0 matter?

Because it connects several science 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 WISE J004945.61+215120.0?

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 WISE J004945.61+215120.0.