INTERPLANETARY
ASTRODYNAMICS 1ST EDITION BY
DAVID B SPENCER AND DAVIDE
CONTE 2026 STUDY GUIDE
COMPREHENSIVE QUESTIONS
ANSWERS VERIFIED A+
◉ Aristotle in greece.
Answer: Origin of orbital mechanics
◉ Nicolas Copernicus.
Answer: First to theorize that the earth and other planets revolved about
the sun in a somewhat circular motion
◉ Tycho brahe.
Answer: Scientist responsible for gathering a wealth of accurate
planetary motion measurements
◉ Johannes Kepler.
Answer: Assistant to tycho Brahe who proposed that planetary orbits
were elliptical and introduced orbital motion laws that are still used
today
◉ Robert hooke.
, Answer: Member of the Royal Society who debated Newton on facts
about orbital mechanics
◉ Isaac newton.
Answer: Scientist who grew interested in math from reading about
astronomy and deduced the existence of an inverse square law attractive
force and proposed the theory of universal gravitation and wrote
Principia
◉ Principia.
Answer: The book that is considered the greatest scientific book ever
written where newton discusses his 3 laws
◉ Orbit.
Answer: A close path around which a planet or satellite travels
◉ Ellipse.
Answer: The two dimensional shape that is produced by a plane fully
intersecting a cone
◉ Ellipse orbit.
Answer: A basic orbit that remains fixed and space and spins above of
earth
◉ Focus.
ASTRODYNAMICS 1ST EDITION BY
DAVID B SPENCER AND DAVIDE
CONTE 2026 STUDY GUIDE
COMPREHENSIVE QUESTIONS
ANSWERS VERIFIED A+
◉ Aristotle in greece.
Answer: Origin of orbital mechanics
◉ Nicolas Copernicus.
Answer: First to theorize that the earth and other planets revolved about
the sun in a somewhat circular motion
◉ Tycho brahe.
Answer: Scientist responsible for gathering a wealth of accurate
planetary motion measurements
◉ Johannes Kepler.
Answer: Assistant to tycho Brahe who proposed that planetary orbits
were elliptical and introduced orbital motion laws that are still used
today
◉ Robert hooke.
, Answer: Member of the Royal Society who debated Newton on facts
about orbital mechanics
◉ Isaac newton.
Answer: Scientist who grew interested in math from reading about
astronomy and deduced the existence of an inverse square law attractive
force and proposed the theory of universal gravitation and wrote
Principia
◉ Principia.
Answer: The book that is considered the greatest scientific book ever
written where newton discusses his 3 laws
◉ Orbit.
Answer: A close path around which a planet or satellite travels
◉ Ellipse.
Answer: The two dimensional shape that is produced by a plane fully
intersecting a cone
◉ Ellipse orbit.
Answer: A basic orbit that remains fixed and space and spins above of
earth
◉ Focus.
