astronomy

NGC 5416

NGC 5416 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 5416 rather than just read about it. In short: NGC 5416 is a spiral galaxy and radio galaxy located in the constellation Boötes. Its speed relative to the cosmic microwave background is 6,499 ± 18 km/s, which corresponds to a Hubble distance of 95.9 ± 6.7 Mpc (~313 million ly).

Key takeaways

NGC 5416 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 5416 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of NGC 5416 from memory before moving on to harder problems.

Reference excerpt

NGC 5416 is a spiral galaxy and radio galaxy located in the constellation Boötes. Its speed relative to the cosmic microwave background is 6,499 ± 18 km/s, which corresponds to a Hubble distance of 95.9 ± 6.7 Mpc (~313 million ly). NGC 5416 was discovered by German-British astronomer William Herschel on 19 March 1784. The luminosity class of NGC 5416 is III-IV and it has a broad HI line. According to the SIMBAD database, NGC 5416 is a radio galaxy. To date, 25 non-redshift measurements yield a distance of 80.152 ± 2.492 Mpc (~261 million ly), which is within the Hubble distance values. Note that it is with the average value of independent measurements, when they exist, that the NASA/IPAC database calculates the diameter of a galaxy and that consequently the diameter of NGC 5416 could be approximately 41.8 kpc (~136,000 ly) if we used the Hubble distance to calculate it.

NGC 5423 group NGC 5416 is part of the NGC 5423 group, the brightest galaxy in this group. This group of galaxies has at least four members, including NGC 5409, NGC 5423, and NGC 5424.

Supernova One supernova has been observed in NGC 5416: SN 2025trg (Type II, mag. 19.6808) was discovered by the Zwicky Transient Facility on 11 August 2025.

See also List of NGC objects (5001–6000) List of spiral galaxies

External links NGC 5416 at NASA/IPAC NGC 5416 at SIMBAD NGC 5416 at LEDA NGC 5416 at SEDS NGC 5416 (DSS2) at WikiSky NGC 5416 (SDSS) at WikiSky NGC 5416 (GALEX) at WikiSky NGC 5416 at Seligman

References

Illustrations

Worked examples

Example 1 — a first encounter with NGC 5416

Start with the simplest possible case. Write down what NGC 5416 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 5416 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 5416 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 5416

In research: NGC 5416 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 5416 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 5416 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Astronomical objects discovered in 1784, Boötes, Discoveries by William Herschel, so understanding it makes those chapters shorter.
In everyday life: Look for NGC 5416 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 5416 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what NGC 5416 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 5416 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is NGC 5416 in simple terms?

Why does NGC 5416 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 5416?

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 5416.