astronomy

WISEA J145223.62+611707.5

WISEA J145223.62+611707.5 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 WISEA J145223.62+611707.5 rather than just read about it. In short: WISEA J145223.62+611707.5 also known as OGC 175 and RGZ J145223.6+611707, is a radio galaxy located in the constellation of Draco. The redshift of the galaxy is (z) 0.278 and it was first discovered in the Sixth Cambridge Catalogue of Radio Sources in September 1990.

Key takeaways

WISEA J145223.62+611707.5 belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect WISEA J145223.62+611707.5 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of WISEA J145223.62+611707.5 from memory before moving on to harder problems.

Reference excerpt

WISEA J145223.62+611707.5 also known as OGC 175 and RGZ J145223.6+611707, is a radio galaxy located in the constellation of Draco. The redshift of the galaxy is (z) 0.278 and it was first discovered in the Sixth Cambridge Catalogue of Radio Sources in September 1990.

Description WISEA J145223.62+611707.5 is categorized as an elliptical galaxy, residing as the brightest cluster galaxy of the WHL J145223.6+611708 galaxy cluster with nine confirmed galaxy member candidates. The total R-band magnitude of the galaxy is found to be 17.10 while the R-band absolute magnitude is -23.97. The mass of the supermassive black hole located in the center of the galaxy is 8.98 M☉. The J-band and H-band infrared magnitudes are estimated to be 16.026 and 15.268 respectively. The galaxy has a presence of an active galactic nucleus and it is classified as a Fanaroff-Riley Class Type II radio galaxy or a bend-tail radio galaxy containing a FRII-like radio source with the total flux density of 136.50 mJy calculated by NRAO VLA Sky Survey (NVSS) at 1.4 GHz. The total angular size of the source is found to be 67.2 arcseconds whereas the total linear size is 284.45 kiloparsecs. There are no detections of either a radio core or hotspot features. The total radio luminosity is 25.97 W Hz−1 at 1.4 GHz. A study in 2025, has found it is a narrow-angle-tail radio galaxy with presence of radio jets. The opening angle of the jets is 29.5° while the curvature radius of the jets are estimated to be 7.2 arcseconds. The spectral index is 1.25α between the frequencies of 1.4 and 3 GHz. The largest angular size is 87 arcseconds while the largest linear size is 381.0 kiloparsecs. The 1.4 GHz logarithmic luminosity is 25.55 W Hz−1 and the flux density at 3 GHz is 49.34 mJy. Evidence also found the source is mainly bent. Based on observations, the bending angle is 11.2° while the excess bending angle is 12.7°.

References

External links WISEA J145223.62+611707.5 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images WISEA J145223.62+611707.5 on HyperLeda

Illustrations

Worked examples

Example 1 — a first encounter with WISEA J145223.62+611707.5

Start with the simplest possible case. Write down what WISEA J145223.62+611707.5 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 WISEA J145223.62+611707.5 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 WISEA J145223.62+611707.5 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 WISEA J145223.62+611707.5

In research: WISEA J145223.62+611707.5 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 WISEA J145223.62+611707.5 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: WISEA J145223.62+611707.5 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Active galaxies, Astronomical objects discovered in 1990, Draco (constellation), so understanding it makes those chapters shorter.
In everyday life: Look for WISEA J145223.62+611707.5 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “WISEA J145223.62+611707.5” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study WISEA J145223.62+611707.5 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what WISEA J145223.62+611707.5 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 WISEA J145223.62+611707.5 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is WISEA J145223.62+611707.5 in simple terms?

Why does WISEA J145223.62+611707.5 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 WISEA J145223.62+611707.5?

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 WISEA J145223.62+611707.5.