The Danish astronomer who kept a roughly 20 year record of the positions of the Sun, Moon, and planets was:

Question

BlackTom AI · Accepted Answer

To approach this question, I’ll evaluate what each option represents in the history of astronomy.
Option 1: Isaac Newton — While Newton made foundational contributions to physics and astronomy, especially with gravity and the calculus that helped describe planetary motion, he is not renowned for keeping a roughly 20-year, detailed observational record of the Sun, Moon, and planets. This option misattributes the long-term observational cataloging to Newton.
Option 2: Nicolaus Copernicus — Copernicus formulated the heliocentric model and published De revolutionibus, but he did not maintain an extensive, multi-decade observational archive of planetary positions. His work was theoretical and mathematical rather than a systematic long-running set of positional observations.
Option 3: Galileo Galilei — Galileo made pivotal telescopic discoveries and conducted careful observations, yet his notable observational records spanned years in service of specific experiments and discoveries rather than a continuous ~20-year catalog of Solar System bodies. This makes this choice inaccurate for the description given.
Option 4: Tycho Brahe — Brahe, a Danish astronomer, is famous for his exceptionally precise naked-eye observations of the positions of the Sun, Moon, and planets, collected over about two decades. His detailed records laid the groundwork for later astronomical breakthroughs and were explicitly characterized by long-term positional data.
Option 5: Jean Luc Picard — A fictional starship captain from a modern sci‑fi franchise; he is not a historical astronomer and certainly not associated with real astronomical observation records. This option is clearly incorrect.
In summary, several options describe key figures in astronomy, but only one is historically linked to maintaining a roughly 20-year record of precise positions for major Solar System bodies, distinguishing it from the others' contributions and methodologies.

The Danish astronomer who kept a roughly 20 year record of the positions of the Sun, Moon, and planets was:单项选择题

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