astronomy

NGC 5033

NGC 5033 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 5033 rather than just read about it. In short: NGC 5033 is an inclined spiral galaxy located in the constellation Canes Venatici. Its velocity with respect to the cosmic microwave background is 1,101±16 km/s, which corresponds to a Hubble distance of 53.0 ± 3.8 Mly (16.24 ± 1.16 Mpc).

Key takeaways

NGC 5033 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 5033 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of NGC 5033 from memory before moving on to harder problems.

Reference excerpt

NGC 5033 is an inclined spiral galaxy located in the constellation Canes Venatici. Its velocity with respect to the cosmic microwave background is 1,101±16 km/s, which corresponds to a Hubble distance of 53.0 ± 3.8 Mly (16.24 ± 1.16 Mpc). Additionally, 25 non-redshift measurements give a similar distance of 53.71 ± 4.38 Mly (16.468 ± 1.344 Mpc). It was discovered by German-British astronomer William Herschel on 1 May 1785. NGC 5033 has a very bright nucleus and a relatively faint disk. Significant warping is visible in the southern half of the disk. The galaxy's relatively large angular size and relatively high surface brightness make it an object that can be viewed and imaged by amateur astronomers. The galaxy's location relatively near Earth and its active galactic nucleus make it a commonly studied object for professional astronomers.

Supernovae Four supernovae have been observed in NGC 5033:

SN 1950C (type unknown, mag. 18.2) was discovered by Fritz Zwicky on 14 May 1950. SN 1985L (Type II, mag. 12.5) was discovered by Natalya Metlova on 13 June 1985. SN 2001gd (Type IIb, mag. 16.5) was discovered by Kōichi Itagaki and Alessandro Dimai on 24 November 2001. SN 2025mvn (Type II, mag. 17.912) was discovered by ATLAS on 3 June 2025.

Nucleus

NGC 5033 contains a Seyfert nucleus, a type of active galactic nucleus. Like many other active galactic nuclei, this galaxy's nucleus is thought to contain a supermassive black hole. The bright emission seen in visible light (as well as other wavebands) is partially produced by the hot gas in the environment around this black hole. Integral field spectroscopic observations of the center of NGC 5033 indicate that the Seyfert nucleus is not located at the kinematic center of the galaxy (the point around which the stars in the galaxies rotate). This has been interpreted as evidence that this galaxy has undergone a merger. The displacement of the Seyfert nucleus from the kinematic center may destabilize the rotation of gas in the center of the galaxy, which could cause gas to fall into the Seyfert nucleus. The gas would be compressed by the enormous gravitational forces in the center of the Seyfert nucleus and become hot, thus making the nucleus appear bright or "active".

Nearby galaxies NGC 5033 and the nearby spiral galaxy NGC 5005 comprise a physical galaxy pair. The two galaxies weakly influence each other gravitationally, but they are not yet close enough to each other to be distorted by the tidal forces of the gravitational interaction. The fainter irregular galaxy IC 4182 is also a member of this group.

See also List of NGC objects (5001-6000)

References

External links Media related to NGC 5033 at Wikimedia Commons

Illustrations

Worked examples

Example 1 — a first encounter with NGC 5033

Start with the simplest possible case. Write down what NGC 5033 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 5033 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 5033 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 5033

In research: NGC 5033 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 5033 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 5033 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Astronomical objects discovered in 1785, Canes Venatici, Discoveries by William Herschel, so understanding it makes those chapters shorter.
In everyday life: Look for NGC 5033 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 5033 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what NGC 5033 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 5033 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is NGC 5033 in simple terms?

Why does NGC 5033 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 5033?

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 5033.