astronomy

SDSS J114230.94+411727.6

SDSS J114230.94+411727.6 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 SDSS J114230.94+411727.6 rather than just read about it. In short: SDSS J114230.94+411727.6 also known as [LHC2018] J175.62890+41.29099, is a radio galaxy located in the constellation of Ursa Major. The redshift of the galaxy is estimated to be located at (z) 0.255.

Key takeaways

SDSS J114230.94+411727.6 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect SDSS J114230.94+411727.6 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of SDSS J114230.94+411727.6 from memory before moving on to harder problems.

Reference excerpt

SDSS J114230.94+411727.6 also known as [LHC2018] J175.62890+41.29099, is a radio galaxy located in the constellation of Ursa Major. The redshift of the galaxy is estimated to be located at (z) 0.255.

Description SDSS J114230.94+411727.6 is an elliptical galaxy residing as the brightest cluster galaxy of the WHL J114230.9+411728 galaxy cluster with 35 confirmed galaxy member candidates. The R-band magnitude of the galaxy is estimated to be 16.79 magnitude and its absolute magnitude is -23.85. The central nucleus is active and has been classified as a non-bent compact radio galaxy with a total radio flux density of 114.40 mJy calculated by the NRAO VLA Sky Survey (NVSS). The radio morphology of the source is elongated, depicted as a single elliptical profile component, although NVSS suggested it has compact morphology that is best described as a single point-like component. A radio core with a core flux density of 100.14 mJy has been detected and the radio emission flux density is 114.20 mJy. The total radio power has been calculated to be 22.99 × 1024 WHz−1. The galaxy also contains a GHz (Gigahertz) source with previous measured flux density of 35 mJy and the total spectral index is -0.8α. The stellar mass of the galaxy is 11.51 M☉ while the total log radio luminosity is 25.34 W Hz−1. The total flux density at 1.4 GHz frequencies is 114.2 mJy. The rest frame r01 magnitude is -23.108.

References

External links SDSS J114230.94+411727.6 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 SDSS J114230.94+411727.6

Start with the simplest possible case. Write down what SDSS J114230.94+411727.6 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 SDSS J114230.94+411727.6 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 SDSS J114230.94+411727.6 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 SDSS J114230.94+411727.6

In research: SDSS J114230.94+411727.6 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 SDSS J114230.94+411727.6 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: SDSS J114230.94+411727.6 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Active galaxies, Elliptical galaxies, LEDA objects, so understanding it makes those chapters shorter.
In everyday life: Look for SDSS J114230.94+411727.6 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 SDSS J114230.94+411727.6 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what SDSS J114230.94+411727.6 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 SDSS J114230.94+411727.6 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is SDSS J114230.94+411727.6 in simple terms?

SDSS J114230.94+411727.6 also known as [LHC2018] J175.62890+41.29099, is a radio galaxy located in the constellation of Ursa Major. The redshift of the galaxy is estimated to be located at (z) 0.255.

Why does SDSS J114230.94+411727.6 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 SDSS J114230.94+411727.6?

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 SDSS J114230.94+411727.6.