Friedrich Bessel

High school (ages 12+)
Science & Technology

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Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/friedrich-bessel

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. When was Friedrich Bessel born?January 22, 1784, Minden, Prussia
2. When did Friedrich Bessel die?March 17, 1846, Königsberg, Prussia
3. What is the primary field?Astronomy and Mathematics
4. What is the related scientific concepts?Stellar Trigonometry, Celestial Mechanics, Observational Astronomy, Astrophysics
5. Who was Friedrich Bessel?He was a German scientist who studied math and stars, and he helped us know how far stars are.
6. How did he find out how far stars are?He measured a tiny shift in a star's position as the Earth moved around the Sun, a trick called stellar parallax.

Stellar Parallax: An astronomical method using the apparent shift of a star against background objects due to Earth's orbital motion to calculate its distance.
Celestial Mechanics: The branch of astronomy that deals with the motion of celestial bodies under the influence of gravity.