Earth's Motion
What is nebular Hypothesis?
What is Earth's rotation?
Earth's rotation is the rotation of Planet Earth around its own axis that is about 24 hours.
What are the three types of galaxies?
elliptical, spiral, irregular
What are the measurements for our solar system?
What are the inner planets?
mercury, Venus, earth, mars
What is procession?
several slow changes in an astronomical body's rotational or orbital parameters
What is the Coriolis effect?
an inertial or fictitious force that acts on objects that are in motion within a frame of reference that rotates with respect to an inertial frame
What are the three components of spiral galaxies?
bulge, disk, halo
What controls the tides?
moon, sun, earth
What are the Jovian Planets?
Jupiter, Saturn, Uranus, Neptune
What is nutation?
What are the three basic tide types?
semi-diurnal, diurnal, and mixed semi-diurnal
What is the mass of the milky way?
1.5 trillion solar masses within a radius of about 129,000 light-years
What is the sun made of?
hydrogen and helium
What is mars atmosphere made of?
carbon dioxide
What is barycenter?
the center of mass of two or more bodies that orbit one another and is the point about which the bodies orbit
What are spring tides?
a tide just after a new or full moon, when there is the greatest difference between high and low water
What is the Doppler effect?
a perception of frequency
Whats in the internal layer of the sun?
inner core, radiative core, convective zone
What is "the eye" on Jupiter?
a gigantic storm that's about twice as wide as Earth, circling the planet in its southern hemisphere
What are Keplers laws?
law of ellipses, law of equal area, law of harmonies
What are neap tides?
a tide just after the first or third quarters of the moon when there is least difference between high and low water
What is red shift?
observed by the color a star emits
What are in the external layers of the sun?
photosphere, chromosphere, corona
What is Uranus's atmosphere composed of?
methane, hydrogen, and helium