astronomy

NGC 1624

NGC 1624 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 NGC 1624 rather than just read about it. In short: NGC 1624, also known as Sh 2-212 in the Sharpless catalog, is a very young open cluster in the constellation Perseus inside an emission nebula. It was discovered by German-British astronomer William Herschel in December 1790.

Key takeaways

NGC 1624 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect NGC 1624 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of NGC 1624 from memory before moving on to harder problems.

Reference excerpt

NGC 1624, also known as Sh 2-212 in the Sharpless catalog, is a very young open cluster in the constellation Perseus inside an emission nebula. It was discovered by German-British astronomer William Herschel in December 1790. Together with the nearby nebula Sh 2-211, it forms part of the region nicknamed the Tribble Nebulae. NGC 1624 is located approximately 20,000 ly (6,000 pc) from Earth, and latest estimates give it an age of less than 4 million years. Its apparent magnitude is 11.8, and apparent diameter is about 3.0 arc minutes. Its celestial location is right ascension (α) 04h 40m 36.0s and declination (δ) +50° 27′ 42″, which is toward the Galactic anticenter. It is potentially an area of massive star formation. According to Robert Trumpler's classification of open clusters, this cluster contains fewer than 50 stars (letter p) with a high concentration (I) and whose magnitudes are distributed over an average interval (number 2). The letter n at the end (I2pn) means that the cluster is inside a nebula.

Gallery

See also Cocoon Nebula Rosette Nebula Little Rosette Nebula Sh 2-82, also known as the 'Little Cocoon Nebula'

References

External links Media related to NGC 1624 at Wikimedia Commons NGC 1624 spider.seds.org NGC 1624 Sh2-211 Sh2-212

Illustrations

Worked examples

Example 1 — a first encounter with NGC 1624

Start with the simplest possible case. Write down what NGC 1624 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 NGC 1624 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 NGC 1624 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 NGC 1624

In research: NGC 1624 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 NGC 1624 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: NGC 1624 is common in secondary-school and first-year university syllabi. It links to neighbouring topics NGC objects, Open clusters, Perseus (constellation), so understanding it makes those chapters shorter.
In everyday life: Look for NGC 1624 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 NGC 1624 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what NGC 1624 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 NGC 1624 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is NGC 1624 in simple terms?

Why does NGC 1624 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 NGC 1624?

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 NGC 1624.