science

WISE 1800+0134

WISE 1800+0134 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 1800+0134 rather than just read about it. In short: WISEP J180026.60+013453.1 (designation is abbreviated to W1800+0134) is a brown dwarf of spectral class L7.5, located in constellation Ophiuchus at approximately 26 light-years from Earth. Discovery WISEP J180026.60+013453.1 was discovered in 2011 by Gizis et al. from data, collected by Wide-field Infrared Survey Explorer (WISE) Earth-orbiting satellite — NASA infrared-wavelength 40 centimetres (16 in)) space telesc…

Key takeaways

WISE 1800+0134 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 1800+0134 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of WISE 1800+0134 from memory before moving on to harder problems.

Reference excerpt

WISEP J180026.60+013453.1 (designation is abbreviated to W1800+0134) is a brown dwarf of spectral class L7.5, located in constellation Ophiuchus at approximately 26 light-years from Earth.

Discovery WISEP J180026.60+013453.1 was discovered in 2011 by Gizis et al. from data, collected by Wide-field Infrared Survey Explorer (WISE) Earth-orbiting satellite — NASA infrared-wavelength 40 centimetres (16 in)) space telescope, which mission lasted from December 2009 to February 2011. There are also precovery identifications of this object in Two Micron All-Sky Survey (2MASS) data (observed on 2000 September 23) and in the 3rd release of the DENIS database (close in time to the 2MASS observation). On 2011 June 22 Gizis et al. had conducted near-infrared spectroscopy with SpeX spectrograph, mounted on the 3 m Infrared Telescope Facility (IRTF), located at the Mauna Kea Observatory in Hawaii. In 2011 Gizis et al. published a paper in The Astronomical Journal, where they presented discovery of a newfound by WISE L-type brown dwarf WISEP J180026.60+013453.1 (a single discovery, presented in the article).

Physical properties WISEP J180026.60+013453.1 has temperature 1430 ± 100 K and luminosity 10−4.5 ± 0.3 Solar luminosities (the estimates are based on the object's spectral class (L7.5)). Mass estimates, determined from this temperature, are 0.04, 0.05, and 0.074 Solar masses, anyway below the hydrogen-burning limit, which implies that WISEP J180026.60+013453.1 is not a true star, but only a substellar object, that is a brown dwarf.

Failed test for binarity WISEP J180026.60+013453.1 was tested spectroscopically for L + T binarity, and the binarity was not revealed. Common proper motion companions also were not found.

See also List of star systems within 25–30 light-years WISE 0031-3840 (L2 pec (blue)) WISE 0049+0441 (L9) WISE 0206+2640 (L9 pec (red)) WISE 1311+3629 (L5 pec (blue)) WISE 1348+6603 (L9) WISE 1647+5632 (L9 pec (red)) WISE 1830+4542 (L9) WISE 2327-2730 (L9) WISE 0607+2429 (L8) WISE 0106+1518 (M8 pec)

Notes

References

Worked examples

Example 1 — a first encounter with WISE 1800+0134

Start with the simplest possible case. Write down what WISE 1800+0134 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 1800+0134 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 1800+0134 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 1800+0134

In research: WISE 1800+0134 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 1800+0134 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 1800+0134 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Brown dwarfs, L-type brown dwarfs, Ophiuchus, so understanding it makes those chapters shorter.
In everyday life: Look for WISE 1800+0134 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 1800+0134 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what WISE 1800+0134 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 1800+0134 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is WISE 1800+0134 in simple terms?

WISEP J180026.60+013453.1 (designation is abbreviated to W1800+0134) is a brown dwarf of spectral class L7.5, located in constellation Ophiuchus at approximately 26 light-years from Earth. Discovery WISEP J180026.60+013453.1 was discovered in 2011 by Gizis et al. from data, collected by Wide-field…

Why does WISE 1800+0134 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 1800+0134?

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 1800+0134.