astronomy

Louise Freeland Jenkins

Louise Freeland Jenkins 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 Louise Freeland Jenkins rather than just read about it. In short: Louise Freeland Jenkins (July 5, 1888 – May 9, 1970) was an American astronomer who compiled a valuable catalogue of stars within 10 parsecs of the sun, as well as editing the 3rd edition of the Yale Bright Star Catalogue. She was born in Fitchburg, Massachusetts.

Key takeaways

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

Reference excerpt

Louise Freeland Jenkins (July 5, 1888 – May 9, 1970) was an American astronomer who compiled a valuable catalogue of stars within 10 parsecs of the sun, as well as editing the 3rd edition of the Yale Bright Star Catalogue. She was born in Fitchburg, Massachusetts. In 1911 she graduated from Mount Holyoke College, then she received a Master's degree in astronomy in 1917 from the same institution. From 1913 to 1915 she worked at the Allegheny Observatory in Pittsburgh. Afterwards, she was an instructor at Mount Holyoke from 1915 to 1920. About 1921 she moved to Japan, becoming a teacher at the Women's Christian College, a missionary school. She returned to the United States in 1925 after her father died. A year later she returned to teach at a school in Himeji. (Hinomoto Gakuen girl's high school.) In 1932 she returned to the US and became a staff member at Yale University Observatory. She was co-editor of the Astronomical Journal starting in 1942, and continued in this post until 1958. She would return to visit Japan later in her life. She was noted for her research into the trigonometric parallax of nearby stars. She also studied variable stars.

Bibliography Frank Schlesinger and Louise F. Jenkins, Yale Bright Star Catalogue, 2nd edition. Louise F. Jenkins, General Catalogue of Trigonometric Stellar Parallaxes, Yale University Observatory, New Haven, Connecticut, 1952. Supplement 1963.

Honors The crater Jenkins on the Moon is named after her.

References

Sei-Ichi Sakuma, Louise F. Jenkins, Astronomer and Missionary in Japan, Journal of the American Association of Variable Star Observers, vol. 14, no. 2, p. 67-68.

External links Louise Freeland Jenkins 1911 Archived March 3, 2016, at the Wayback Machine, including portrait image. Hinomoto Gakuen Senior High School

Illustrations

Worked examples

Example 1 — a first encounter with Louise Freeland Jenkins

Start with the simplest possible case. Write down what Louise Freeland Jenkins 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 Louise Freeland Jenkins 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 Louise Freeland Jenkins 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 Louise Freeland Jenkins

In research: Louise Freeland Jenkins 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 Louise Freeland Jenkins 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: Louise Freeland Jenkins is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1888 births, 1970 deaths, 20th-century American scientists, so understanding it makes those chapters shorter.
In everyday life: Look for Louise Freeland Jenkins 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 Louise Freeland Jenkins in 20 minutes

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

Frequently asked questions

What is Louise Freeland Jenkins in simple terms?

Why does Louise Freeland Jenkins 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 Louise Freeland Jenkins?

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 Louise Freeland Jenkins.