astronomy

WISEA 1101+5400

WISEA 1101+5400 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 WISEA 1101+5400 rather than just read about it. In short: WISEA 1101+5400 (full name WISEA J110125.95+540052.8) is a T-type brown dwarf (specifically T5.5) approximately 100 light-years away in the constellation Ursa Major. It was discovered in March 2017 by members of the citizen science project Backyard Worlds.

Key takeaways

WISEA 1101+5400 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect WISEA 1101+5400 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of WISEA 1101+5400 from memory before moving on to harder problems.

Reference excerpt

WISEA 1101+5400 (full name WISEA J110125.95+540052.8) is a T-type brown dwarf (specifically T5.5) approximately 100 light-years away in the constellation Ursa Major. It was discovered in March 2017 by members of the citizen science project Backyard Worlds. Initial photometric analysis suggested it was a T5.5 dwarf, which was later confirmed by a spectrum of the object obtained with the NASA Infrared Telescope Facility. It is the first confirmed brown dwarf found by the project. The brown dwarf was identified by several volunteers, including the therapist Rosa Castro, Bob Fletcher, Khasan Mokaev and Tamara Stajic. WISEA 1101+5400 was discovered six days after the launch of the project and the discovery was the fastest publication for any Zooniverse project at the time of the publication. The discovery of this brown dwarf allowed the backyard worlds collaboration to estimate the amount of new brown dwarfs the project could discover. This was allowed due to the fact that the brown dwarf is one magnitude fainter than any brown dwarf previously discovered with proper motion surveys. The team estimated that the project would discover 37+39−21 new L-dwarfs, 77+41−31 T-dwarfs and 6+7−4 Y-dwarfs. As of July 2019 the project did meet this estimate with spectroscopically confirmed T- and L-dwarfs (70 T-dwarfs and 61 L-dwarfs), but exceeded this estimate by brown dwarf candidates (1305).

External links WISEA 1101+5400 on wiseview, a tool created by Backyard Worlds volunteers Subject 5566284 Zooniverse subject New Brown Dwarf Found by NASA-funded Citizen Science Project Goddard Media Studios (GSFC) Citizen Scientists Uncover Cold New World Near the Sun story by AMNH

References

Illustrations

Worked examples

Example 1 — a first encounter with WISEA 1101+5400

Start with the simplest possible case. Write down what WISEA 1101+5400 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 WISEA 1101+5400 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 WISEA 1101+5400 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 WISEA 1101+5400

In research: WISEA 1101+5400 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 WISEA 1101+5400 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: WISEA 1101+5400 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Astronomical objects discovered in 2017, Brown dwarf stubs, Brown dwarfs, so understanding it makes those chapters shorter.
In everyday life: Look for WISEA 1101+5400 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 WISEA 1101+5400 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what WISEA 1101+5400 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 WISEA 1101+5400 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is WISEA 1101+5400 in simple terms?

Why does WISEA 1101+5400 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 WISEA 1101+5400?

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 WISEA 1101+5400.