astronomy

NGC 1085

NGC 1085 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 1085 rather than just read about it. In short: NGC 1085 is a large spiral galaxy in the constellation of Cetus. Its velocity with respect to the cosmic microwave background is 6,569±16 km/s, which corresponds to a Hubble distance of 316.0 ± 22.1 Mly (96.89 ± 6.79 Mpc).

Key takeaways

NGC 1085 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 1085 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of NGC 1085 from memory before moving on to harder problems.

Reference excerpt

NGC 1085 is a large spiral galaxy in the constellation of Cetus. Its velocity with respect to the cosmic microwave background is 6,569±16 km/s, which corresponds to a Hubble distance of 316.0 ± 22.1 Mly (96.89 ± 6.79 Mpc). Additionally, 12 non-redshift measurements give a closer mean distance of 276.07 ± 12.60 Mly (84.642 ± 3.862 Mpc). It was discovered by German astronomer Heinrich d'Arrest on 26 September 1865.

NGC 1016 group NGC 1085 is a member of the NGC 1016 galaxy group, which contains 10 members, including NGC 1004, NGC 1016, IC 232, IC 241, IC 1843, UGC 2018, UGC 2019, UGC 2024, and UGC 2051.

Supernovae Two supernovae have been observed in NGC 1085:

SN 2003hk (Type II, mag. 17.6) was discovered by LOTOSS (Lick Observatory and Tenagra Observatory Supernova Searches), and independently by Tom Boles, on 20 August 2003. SN 2025ymh (Type II, mag. 19.55) was discovered by the Large Array Survey Telescope (LAST) on 24 September 2025.

See also List of NGC objects (1001–2000)

References

External links Media related to NGC 1085 at Wikimedia Commons NGC 1085 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 NGC 1085

Start with the simplest possible case. Write down what NGC 1085 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 1085 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 1085 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 1085

In research: NGC 1085 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 1085 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 1085 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Astronomical objects discovered in 1865, Cetus (constellation), Discoveries by Heinrich Louis d'Arrest, so understanding it makes those chapters shorter.
In everyday life: Look for NGC 1085 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 NGC 1085 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what NGC 1085 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 1085 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is NGC 1085 in simple terms?

Why does NGC 1085 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 1085?

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 1085.