astronomy

NGC 4414

NGC 4414 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 4414 rather than just read about it. In short: NGC 4414, also known as the Dusty Spiral Galaxy, is an unbarred spiral galaxy about 62 million light-years away in the constellation Coma Berenices. It was discovered by German-British astronomer William Herschel on 13 March 1785.

Key takeaways

NGC 4414 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 4414 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of NGC 4414 from memory before moving on to harder problems.

Reference excerpt

NGC 4414, also known as the Dusty Spiral Galaxy, is an unbarred spiral galaxy about 62 million light-years away in the constellation Coma Berenices. It was discovered by German-British astronomer William Herschel on 13 March 1785. NGC 4414 is a flocculent spiral galaxy, with short segments of spiral structure but without the dramatic well-defined spiral arms of a grand design spiral. It is a member of the Coma I Group, a group of galaxies lying physically close to the Virgo Cluster. The galaxy was imaged by the Hubble Space Telescope in 1995, as part of the HST's main mission to determine the distance to galaxies, and again in 1999 as part of the Hubble Heritage project. It has been part of an ongoing effort to study its Cepheid variable stars. The outer arms appear blue due to the continuing formation of young stars and include a possible luminous blue variable with an absolute magnitude of −10. NGC 4414 is also an isolated galaxy without signs of past interactions with other galaxies and despite not being a starburst galaxy shows a high density and richness of gas – both atomic and molecular, with the former extending far beyond its optical disk.

Supernovae Four supernovae have been observed in NGC 4414:

SN 1974G (Type I, mag. 13) was discovered by Miss W. Burgat on 20 April 1974. SN 2013df (Type IIb, mag. 14.4) was discovered by the Italian Supernovae Search Project on 7 June 2013. SN 2021J (Type Ia, mag. 12) was discovered by the Automatic Learning for the Rapid Classification of Events (ALeRCE) on 1 January 2021. SN 2023hlf (Type II, mag. 17.8) was discovered by the Zwicky Transient Facility on 1 May 2023.

Image gallery

References

External links

Turner, Anne; Ferrarese, Laura; Saha, Abhijit; Bresolin, Fabio; Kennicutt, Jr, Robert C.; Stetson, Peter B.; Mould, Jeremy R.; Freedman, Wendy L.; Gibson, Brad K.; Graham, John A.; Ford, Holland; Han, Mingsheng; Harding, Paul; Hoessel, J. G.; Huchra, John P.; Hughes, Shaun M. G.; Illingworth, Garth D.; Kelson, Daniel D.; Macri, Lucas; Madore, Barry F.; Phelps, Randy; Rawson, Daya; Sakai, Shoko; Silbermann, N. A. (1998). "The Hubble Space Telescope Key Project on the Extragalactic Distance Scale. XI. The Cepheids in NGC 4414". The Astrophysical Journal. 505 (1): 207–229. Bibcode:1998ApJ...505..207T. doi:10.1086/306150. S2CID 199661112. Hubble Heritage Project NGC 4414 NASA Astronomy Picture of the Day: NGC 4414: A Flocculent Spiral Galaxy (3 April 2002) ESA/Hubble image of NGC 4414

Illustrations

Worked examples

Example 1 — a first encounter with NGC 4414

Start with the simplest possible case. Write down what NGC 4414 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 4414 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 4414 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 4414

In research: NGC 4414 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 4414 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 4414 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Astronomical objects discovered in 1785, Coma Berenices, Coma I Group, so understanding it makes those chapters shorter.
In everyday life: Look for NGC 4414 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “NGC 4414” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study NGC 4414 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what NGC 4414 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 4414 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is NGC 4414 in simple terms?

Why does NGC 4414 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 4414?

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 4414.