astronomy

OGC 586

OGC 586 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 OGC 586 rather than just read about it. In short: OGC 586 also known as 2MASX J11535621+4923562, is a massive spiral galaxy located in the constellation of Ursa Major. The redshift of the galaxy is estimated to be (z) 0.166 and it is classified as a super spiral galaxy; a class of star-forming disk galaxies that are found to be much more massive.

Key takeaways

OGC 586 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect OGC 586 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of OGC 586 from memory before moving on to harder problems.

Reference excerpt

OGC 586 also known as 2MASX J11535621+4923562, is a massive spiral galaxy located in the constellation of Ursa Major. The redshift of the galaxy is estimated to be (z) 0.166 and it is classified as a super spiral galaxy; a class of star-forming disk galaxies that are found to be much more massive.

Description OGC 586 is a brightest cluster galaxy (BCG) of the galaxy cluster called the OGC 586 Cluster located at the same redshift and named after the galaxy itself. The apparent luminosity has been estimated as Lr = 2.8 and the total isophotal diameter has been calculated as 90.2 kiloparsecs. In addition, it is also categorized as a Seyfert galaxy of Type 2, with an active galactic nucleus (AGN). The bulge fraction ratio has been estimated as B/T = 0.17, with the galactic disk showing a disk inclination of 63° and orientated at a position angle of 144°. The disk exponential scale length is Rd = 15.67. The total star formation rate of the galaxy is 1.58 M☉ per year based on a calculation of a 12 micrometer band system by Wide-field Infrared Survey Explorer (WISE) with the total mass of the stars estimated to be 11.64 M☉ based on its W-1 band luminosity. Studies also found it is located in a dense galaxy environment with at least 14 or more companions within a 150 kiloparsec radius. The inclination angle of OGC 586 is 66° based on the calculation of its z-band axial ratio. The major axis position angle is orientated at 128°, with the flat part of the rotation curve displaying a velocity of 338 ± 27 kilometers per second. The galaxy has a compact disk of cold gas. The total mass of the gas is 10.8 M☉. The disk may also be warped, based on a change of its regular rotation, with the deprojected maximum rotation speed being vmax = 305 kilometers per seconds.

References

External links OGC 586 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 OGC 586

Start with the simplest possible case. Write down what OGC 586 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 OGC 586 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 OGC 586 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 OGC 586

In research: OGC 586 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 OGC 586 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: OGC 586 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Active galaxies, LEDA objects, Seyfert galaxies, so understanding it makes those chapters shorter.
In everyday life: Look for OGC 586 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 OGC 586 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what OGC 586 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 OGC 586 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is OGC 586 in simple terms?

Why does OGC 586 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 OGC 586?

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 OGC 586.