astronomy

UGC 11919

UGC 11919 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 UGC 11919 rather than just read about it. In short: UGC 11919 is an intermediate spiral galaxy located in the constellation of Lacerta. The redshift of the galaxy is (z) 0.017 and it was first discovered by astronomers in 1998.

Key takeaways

UGC 11919 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect UGC 11919 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of UGC 11919 from memory before moving on to harder problems.

Reference excerpt

UGC 11919 is an intermediate spiral galaxy located in the constellation of Lacerta. The redshift of the galaxy is (z) 0.017 and it was first discovered by astronomers in 1998. It also has been categorized as an unusual spiral galaxy based on observations.

Description UGC 11919 is an unusual spiral galaxy with a low dynamical mass to light ratio. When observed, its own stellar velocity dispersion is shown to display a depression feature that possibly hints its nuclear stellar disk is suggested as kinetically decoupled. Evidence also found the galaxy also has presence of spiral arms based on residual imaging and a H I disk feature that suggests as an end result of gravitational interactions. Two companions are found from the galaxy with their velocity differences being 355 and 252 kilometers per seconds respectively. A study published in 2015, has found the galaxy has a nuclear disk component with low amount of metallicity. This is likely caused through an accretion of a neighboring satellite galaxy of low mass, which is subsequently by star formation. On the other hand, the stellar bulge feature shows the highest metallicity rate. The estimated age of the bulge and nuclear disk is around 4.2 and 2.3 billion years while the disk feature is 2.6 billion years.

References

External links UGC 11919 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

Illustrations

Worked examples

Example 1 — a first encounter with UGC 11919

Start with the simplest possible case. Write down what UGC 11919 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 UGC 11919 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 UGC 11919 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 UGC 11919

In research: UGC 11919 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 UGC 11919 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: UGC 11919 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Astronomical objects discovered in 1998, IRAS catalogue objects, Intermediate spiral galaxies, so understanding it makes those chapters shorter.
In everyday life: Look for UGC 11919 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 UGC 11919 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what UGC 11919 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 UGC 11919 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is UGC 11919 in simple terms?

UGC 11919 is an intermediate spiral galaxy located in the constellation of Lacerta. The redshift of the galaxy is (z) 0.017 and it was first discovered by astronomers in 1998.

Why does UGC 11919 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 UGC 11919?

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 UGC 11919.