Suppose a comet orbits the Sun on a highly eccentric orbit with an average (semimajor axis) distance of 1 AU. How long does it take to complete each orbit, and how do we know?
A) Each orbit takes about 1 year, which we know from Kepler's third law.
B) It depends on the eccentricity of the orbit, as described by Kepler's first law.
C) It depends on the eccentricity of the orbit, as described by Kepler's second law.
D) Each orbit should take about 2 years, because the eccentricity is so large.
Question 2
The element first found in the Sun's spectrum, then on Earth 30 years later, is
A) technicum. B) aluminum. C) solarium. D) hydrogen. E) helium.
(a) Mean duration (days) and (b) average maximum depth (mm) of snow cover throughout northern latitu
Uranus revolves around the Sun once every 84 Earth years. Its average distance from the Sun is rough
The Orbit and Tails of a Comet
Comet Tempel 1
Comet 67P/Churyumov-Gerasimenko from a distance of just 29 kilometres (ESA)
The undersurface of the tongue is highly vascular