astronomy

Perseus–Pisces Supercluster

Perseus–Pisces Supercluster 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 Perseus–Pisces Supercluster rather than just read about it. In short: The Perseus–Pisces Supercluster (SCl 40) or Perseus–Pisces Filament is one of the largest known structures in the universe. Even at a distance of 250 million light-years, this chain of galaxy clusters extends more than 40° across the northern winter sky.

Key takeaways

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

Reference excerpt

The Perseus–Pisces Supercluster (SCl 40) or Perseus–Pisces Filament is one of the largest known structures in the universe. Even at a distance of 250 million light-years, this chain of galaxy clusters extends more than 40° across the northern winter sky. The Perseus–Pisces Supercluster is one of two dominant concentrations of galaxies (the other being the Laniakea Supercluster) in the nearby universe (within 300 million light-years). This supercluster also borders a prominent void, the Taurus Void, and is part of the Perseus–Pegasus Filament, which stretches for roughly a billion light years.

Clusters The main clusters of the Perseus–Pisces Supercluster are Abell 262, Abell 347, and Abell 426. The clusters in the Pisces region (SCL 24) are Abell 76, Abell 119, Abell 147, Abell 160, Abell 193, Abell 168 and Abell 195.

See also Abell catalogue Large-scale structure of the universe List of Abell clusters

References

External links Atlas of the universe page on the Perseus–Pisces Supercluster

Illustrations

Worked examples

Example 1 — a first encounter with Perseus–Pisces Supercluster

Start with the simplest possible case. Write down what Perseus–Pisces Supercluster 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 Perseus–Pisces Supercluster 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 Perseus–Pisces Supercluster 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 Perseus–Pisces Supercluster

In research: Perseus–Pisces Supercluster 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 Perseus–Pisces Supercluster 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: Perseus–Pisces Supercluster is common in secondary-school and first-year university syllabi. It links to neighbouring topics Galaxy superclusters, Perseus-Pisces Supercluster, Pisces–Cetus Supercluster Complex, so understanding it makes those chapters shorter.
In everyday life: Look for Perseus–Pisces Supercluster 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 Perseus–Pisces Supercluster in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Perseus–Pisces Supercluster 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 Perseus–Pisces Supercluster out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Perseus–Pisces Supercluster in simple terms?

Why does Perseus–Pisces Supercluster 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 Perseus–Pisces Supercluster?

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 Perseus–Pisces Supercluster.