astronomy

UGC 934

UGC 934 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 934 rather than just read about it. In short: UGC 934, known as PGC 5085, is a large spiral galaxy about 470 million light-years away from the Solar System. It is located in the constellation of Pisces and about 285,000 thousand light-years in diameter.

Key takeaways

UGC 934 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 934 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of UGC 934 from memory before moving on to harder problems.

Reference excerpt

UGC 934, known as PGC 5085, is a large spiral galaxy about 470 million light-years away from the Solar System. It is located in the constellation of Pisces and about 285,000 thousand light-years in diameter. With its neighboring galaxy PGC 212740, they together form the galaxy pair, VV 341. They are also known as Arp 70, the 70th number in the Atlas of Peculiar Galaxies, created by Halton Arp. In this class, they fall under spiral galaxies that have a small high-surface brightness companions. According to Laurikainen, Salo & Aparicio, UGC 934 and the neighboring galaxy are examples of M51- type galaxies, i.e. a system where a large galaxy with two spiral arms is seen interacting with a smaller companion. It is likely the interaction with PGC 212740 would result UGC 934 having grand design spiral arms. The SIMBAD database and by Lacerda et al. (2020) classifies UGC 934 as a Seyfert type 2 galaxy with an active galactic nucleus. A giant H II region in the galaxy has been discovered in one of its spiral arms. It has a luminosity of (7.5 ± 0.5) × 1040 ergs−1. Additionally, the rate of star formation in UGC 934 is 0.59 ± 0.04 M⊙ yr−1.

Supernovae Two supernovae have been discovered in UGC 934 so far, SN 2003lc and SN 2005ly.

SN 2003lc SN 2003lc, was an apparent supernova located 32.1" west and 10.7" north of its nucleus. It was discovered by two astronomers, T. Puckett and L. Cox in December 2003, via an unfiltered CCD frame but no supernova classification was confirmed.

SN 2005ly SN 2005ly was discovered by T. Puckett and G. Sostero in December 2005, using another unfiltered CCD frame observed with the Puckett Observatory supernova patrol telescope in Ellijay, Georgia. It was located 5".4 east and 18".2 south. Unlike SN 2003lc, SN 2005ly was classified a Type-IIn supernova by astronomers from Harvard-Smithsonian Center for Astrophysics and the National Optical Astronomy Observatory who obtained its spectrum. They confirmed it has Balmer emission lines, having both a narrow and wide component, and a blue continuum indicating a relative young age for the spectrum.

References

Illustrations

Worked examples

Example 1 — a first encounter with UGC 934

Start with the simplest possible case. Write down what UGC 934 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 934 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 934 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 934

In research: UGC 934 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 934 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 934 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Arp objects, Interacting galaxies, LEDA objects, so understanding it makes those chapters shorter.
In everyday life: Look for UGC 934 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 934 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what UGC 934 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 934 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is UGC 934 in simple terms?

Why does UGC 934 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 934?

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 934.