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A planet is a hydrostatically stable satellite of a star or stellar remnant in the form of a solid, liquid, or gas which may or may not be habitable. Planets are not large and massive enough like stars to cause nuclear fusion. They do not generate their own heat and light but only receive and reflect the heat and light from their stars. They also orbit around and rotate on their axes with respect to their stars. In addition, planets must also clear all debris in their surrounding orbits. As far we currently know, in order for a planet to be habitable like our Earth, it must have liquid water on most of its surface and be in the habitable zone of its star.
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How do you define a day in astronomy?
A day is defined as the time it takes a planet to make one rotation on it's axis.
How do you define the word 'planet' in astronomy?
A planet is a non-luminous approximately spherical solid or gas that is a satellite of a star and that clears its orbital path of any smaller bodies. OR A planet is a solid orbiting body of a star, leaving comets out of the discussion. I have trouble thinking of a planet as a gas.
What does Saturn have to do with astronomy?
Saturn is a planet.
What do you call the study of the planet?
astronomy
How do you define a 'star' in physics and astronomy?
In physics and astronomy, a star is a huge globe of plasma that emits its own radiation.
What is the study of things beyond planet earth?
astronomy
Why is Jupiter related to astronomy?
Astronomy is the science of looking at the sky to see stars, planets and other things in space. As Jupiter is a planet that can be seen, it is related to Astronomy.
How do you understand planet earth?
through the study of space and astronomy
Which planet is 1.00ua from the sun?
The Earth. (I teach Astronomy - if that helps).
How do you define a cluster?
In astronomy, a cluster is a large group of celestial bodies such as stars or galaxies.
How do you define rotation in astronomy?
Rotation is the circular motion of a body around a central axis.
The study of the motion of planet earth and other planets is called?
Astronomy.
