astronomy

Sigurd Einbu

Sigurd Einbu 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 Sigurd Einbu rather than just read about it. In short: Sigurd Einbu (November 5, 1866 – May 10, 1946) (spelled Enebue at birth), was a Norwegian self-taught astronomer from Lesjaskog, known to have discovered a nova in the stellar constellation Gemini on March 12, 1912. The nova was named Nova Geminorum 2.

Key takeaways

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

Reference excerpt

Sigurd Einbu (November 5, 1866 – May 10, 1946) (spelled Enebue at birth), was a Norwegian self-taught astronomer from Lesjaskog, known to have discovered a nova in the stellar constellation Gemini on March 12, 1912. The nova was named Nova Geminorum 2. Also in 1912 he introduced a new class of variable stars, the RV Tauri variable stars. He spelled his family name Enebo during large parts of his scientific career, but in 1926 he changed it to Einbu according to the local pronunciation. Einbu attended Hamar offentlige lærerskole, and worked as a teacher in Øyer, Vågå and Sel before returning to his home community Dombås. He took an interest in astronomy at an early age, but could not devote himself fully to astronomy until he was appointed statsstipendiat (Government scholar) in 1908. He was a founding member of Norsk Novaselskap. He established and ran a magnetic monitoring station at Dombås from 1916. During his lifetime he was a people's educator and wrote frequently in newspapers and popular journals. His childhood house Einbustugu has been moved from Lesjaskog to Dombås, and is today a museum in his memory.

Awards Sigurd Einbu was awarded

Lindemannsprisen granted at the meeting of the Astronomische Gesellschaft in Jena in 1906 Atenogenes-Silva medaljen from Sociedad Astronomica de Mexico in 1912 Fridtjof Nansen Prize for Outstanding Research from Nansenfondet awarded by Videnskapsakademiet i Kristiania in 1926. Gunnerus Medal from Royal Norwegian Society of Sciences and Letters in Trondheim in 1934. Honorary member of Norwegian Astronomical Society in Oslo on May 5, 1938.

Literature Stjernegransking i gamall og ny tid. 1911 (Norwegian) Vår sol. 1922 (Norwegian) Gjennem stjerneverdenen. 1: Vor sol og dens følge. 1923 (Norwegian) Vår måne. 1923 (Norwegian) Gjennem stjerneverdenen. 2: Melkeveiens soler: (fiksstjernene). 1924 (Norwegian) Beobachtungen veränderlicher Sterne I – XIV (German) Bebodde verdener i nytt lys. 1928 (Norwegian) Soler og atom. 1930 (Norwegian) 250 in den Jahren 1903–1941 in Norwegen beobachtete Feuerkugeln: Errechnung der Radianten u. a.. 1942 (German) Dovre kommune gjennom hundreåret 1837–1937. 1949 (Norwegian) Lesja: litt frå den kommunale soga 1838–1938, og ymse anna. 1949 (Norwegian) About Einbu R. Tambs Lyche. "Sigurd Einbu: Minnetale" I: Det Kongelige norske videnskabers selskabs forhandlinger; vol. 19. 1946 (Norwegian)

References

External links Norddalsarkivet on Sigurd Einbu Einsbu's observatory

Worked examples

Example 1 — a first encounter with Sigurd Einbu

Start with the simplest possible case. Write down what Sigurd Einbu 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 Sigurd Einbu 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 Sigurd Einbu 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 Sigurd Einbu

In research: Sigurd Einbu 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 Sigurd Einbu 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: Sigurd Einbu is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1866 births, 1946 deaths, Norwegian astronomers, so understanding it makes those chapters shorter.
In everyday life: Look for Sigurd Einbu 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 Sigurd Einbu in 20 minutes

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

Frequently asked questions

What is Sigurd Einbu in simple terms?

Why does Sigurd Einbu 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 Sigurd Einbu?

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 Sigurd Einbu.