astronomy

SDSS J105054.22+225651.0

SDSS J105054.22+225651.0 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 J105054.22+225651.0 rather than just read about it. In short: SDSS J105054.22+225651.0 also known as [LHC2018] J162.72597+22.94749, is a radio galaxy located in the constellation of Leo Minor. The redshift of the galaxy is estimated to be located at (z) 0.344.

Key takeaways

SDSS J105054.22+225651.0 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 J105054.22+225651.0 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of SDSS J105054.22+225651.0 from memory before moving on to harder problems.

Reference excerpt

SDSS J105054.22+225651.0 also known as [LHC2018] J162.72597+22.94749, is a radio galaxy located in the constellation of Leo Minor. The redshift of the galaxy is estimated to be located at (z) 0.344.

Description SDSS J105054.22+225651.0 is an elliptical galaxy residing as the brightest cluster galaxy of the WHL J105054.2+225651 galaxy cluster with 30 confirmed galaxy member candidates, but not affiliated with any of the superclusters. The R-band magnitude of the galaxy is 17.71 while its absolute magnitude is -23.73. The central nucleus is active and it has been categorized as a Fanaroff-Riley Class Type I radio galaxy with its flux density measured as 15.00 mJy by NRAO VLA Sky Survey (NVSS). The radio morphology is elongated and described as a single elliptical profile component although it can also be stated as having a compact radio morphology, depicted as a single point-like component. A radio core is present with its total core flux density being calculated as 13.47 mJy while the radio emission flux density is 14.90 mJy. The luminosity distance of the source is 1839.3 megaparsecs whereas the radio power is 6.09 × 1024 WHz−1. A study found the total stellar mass of the galaxy is 11.51 M☉. The log radio luminosity is 24.75 W Hz−1 whereas the radio flux density at 1.4 GHz frequencies is 15.0 mJy. The rest-frame r0.1 magnitude is -23.21. Evidence found the galaxy is mainly powered by its active galactic nucleus.

References

External links SDSS J105054.22+225651.0 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 J105054.22+225651.0

Start with the simplest possible case. Write down what SDSS J105054.22+225651.0 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 J105054.22+225651.0 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 J105054.22+225651.0 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 J105054.22+225651.0

In research: SDSS J105054.22+225651.0 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 J105054.22+225651.0 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 J105054.22+225651.0 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 J105054.22+225651.0 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 J105054.22+225651.0 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what SDSS J105054.22+225651.0 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 J105054.22+225651.0 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is SDSS J105054.22+225651.0 in simple terms?

SDSS J105054.22+225651.0 also known as [LHC2018] J162.72597+22.94749, is a radio galaxy located in the constellation of Leo Minor. The redshift of the galaxy is estimated to be located at (z) 0.344.

Why does SDSS J105054.22+225651.0 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 J105054.22+225651.0?

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 J105054.22+225651.0.