astronomy

QSO B1150+812

QSO B1150+812 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 QSO B1150+812 rather than just read about it. In short: QSO B1150+812 is a quasar located in the constellation of Camelopardalis. It has a redshift of (z) 1.25 and it was first discovered in 1983 as an astronomical radio source by astronomers during the 5 GHz S5 survey.

Key takeaways

QSO B1150+812 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect QSO B1150+812 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of QSO B1150+812 from memory before moving on to harder problems.

Reference excerpt

QSO B1150+812 is a quasar located in the constellation of Camelopardalis. It has a redshift of (z) 1.25 and it was first discovered in 1983 as an astronomical radio source by astronomers during the 5 GHz S5 survey. This object also has a radio spectrum described as flat, making it a flat-spectrum radio source.

Description The source of QSO B1150+812 is found to be compact. It has a core-jet structure described as one-sided, based on radio mapping taken by Very Long Baseline Array. The radio emission of the source is heavily concentrated within the region of the radio core measuring 0.3 milliarcseconds in extent, contributing most of the flux density at 15.4 GHz. Earlier observations conducted in 1987, showed the source has two major components; mainly a northern unresolved component and a southern elongated component displaying a slight extension towards southeast. Evidence showed the gaps of the two components are separating by 0.12 milliarcseconds per year indicating superluminal expansion. The jet of QSO B1150+812 is described showing superluminal motion and orientating in a southwards direction from the core by 5 milliarcseconds. A polarization map at 7.9 GHz frequencies, described the jet's electric vector position angle as roughly perpendicular but offset towards the western edge of the jet, hinting a longitudinal magnetic field. A rapid polarization swing at 180 degrees, was observed from the quasar by astronomers. During the swing at between 20 and 25 hours, it was noted the flux density was minimum with a decreased flux densities of 60 mJy at a 1 hour time scale. Based from observation results, astronomers suggested the swing was caused by the occultation of two polarized components via interstellar clouds. This theory might be explained by refractive focusing.

References

External links QSO B1150+812 on SIMBAD QSO B1150+812 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

Illustrations

Worked examples

Example 1 — a first encounter with QSO B1150+812

Start with the simplest possible case. Write down what QSO B1150+812 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 QSO B1150+812 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 QSO B1150+812 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 QSO B1150+812

In research: QSO B1150+812 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 QSO B1150+812 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: QSO B1150+812 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Active galaxies, Astronomical objects discovered in 1983, Camelopardalis, so understanding it makes those chapters shorter.
In everyday life: Look for QSO B1150+812 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 QSO B1150+812 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what QSO B1150+812 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 QSO B1150+812 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is QSO B1150+812 in simple terms?

Why does QSO B1150+812 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 QSO B1150+812?

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 QSO B1150+812.