Johann Gottfried Galle

High school (ages 12+)
Space & Astronomy

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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/johann-gottfried-galle

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 Johann Gottfried Galle born?June 9, 1812
2. Where was Johann Gottfried Galle born?Radis, Germany
3. What is the primary affiliation?Berlin Observatory
4. What is the collaborator?Assisted by student Heinrich Louis d'Arrest in the observation
5. Who was Johann Gottfried Galle?He was a German astronomer born in 1812 who worked at the Berlin Observatory and studied the sky.
6. How did Galle help find Neptune?He used a telescope to look at the coordinates sent by mathematician Le Verrier and spotted the new planet within an hour.

Celestial Mechanics: The branch of astronomy concerned with the motion of celestial bodies under the influence of gravity.
Orbital Perturbation: Deviations in the orbit of a celestial body caused by the gravitational pull of other bodies.
Empirical Verification: The process of confirming a scientific theory or hypothesis through observation and experimentation.