astronomy

NGC 6027d

NGC 6027d 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 NGC 6027d rather than just read about it. In short: NGC 6027d is a face-on barred spiral galaxy located approximately 877 million light-years (269 Mpc) away in the constellation Serpens. Although it appears visually within Seyfert's Sextet (HCG 79), high-resolution spectroscopy demonstrates that NGC 6027d is an unassociated background galaxy located nearly five times further away than the core interacting group.

Key takeaways

NGC 6027d belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect NGC 6027d to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of NGC 6027d from memory before moving on to harder problems.

Reference excerpt

NGC 6027d is a face-on barred spiral galaxy located approximately 877 million light-years (269 Mpc) away in the constellation Serpens. Although it appears visually within Seyfert's Sextet (HCG 79), high-resolution spectroscopy demonstrates that NGC 6027d is an unassociated background galaxy located nearly five times further away than the core interacting group. The galaxy has an apparent visual magnitude of 16.5.

Physical Characteristics NGC 6027d exhibits a recessional velocity of approximately 19,813 km/s, significantly higher than the 4,350 km/s mean velocity of the interacting cluster core. Because it lies in the far background along the same line of sight, NGC 6027d does not experience gravitational interactions or tidal disruptions from the members of Seyfert's Sextet.

Supernovae One supernova has been recorded in NGC 6027d. Supernova SN 1998fe was detected on July 19, 1998, by the Lick Observatory Supernova Search. Its type is unknown, and it reached a peak visual magnitude of 18. Its type is unknown, and had a peak visual magnitude of 18.

See also NGC 6027 NGC 6027a NGC 6027b NGC 6027c NGC 6027e List of NGC objects (6001–7000)

References

External links HubbleSite NewsCenter: Pictures and description

Illustrations

Worked examples

Example 1 — a first encounter with NGC 6027d

Start with the simplest possible case. Write down what NGC 6027d 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 NGC 6027d 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 NGC 6027d 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 NGC 6027d

In research: NGC 6027d 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 NGC 6027d 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: NGC 6027d is common in secondary-school and first-year university syllabi. It links to neighbouring topics Astronomical objects discovered in 1951, Barred spiral galaxies, Barred spiral galaxy stubs, so understanding it makes those chapters shorter.
In everyday life: Look for NGC 6027d 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.

Affiliate

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

How to study NGC 6027d in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what NGC 6027d 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 NGC 6027d out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is NGC 6027d in simple terms?

Why does NGC 6027d 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 NGC 6027d?

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 NGC 6027d.