Our Sun
What element does our Sun fuse in order to produce energy?
Hydrogen
The H-R diagram organises stars based on their chracteristics. What variable is measured on this graphs x axis?
Temperature/Color
What is a Terrestrial planet?
An earth like planet- small and rocky. Mercury, Venus, Earth, and Mars
What is eccentrcity?
A measure of how elliptical a planets orbit is
What is the habitable zone?
The distance not too close and not too far from a star on which a planet could sustain life
What element is prodcued as our Sun generates energy?
Helium
What characteristic of a star causes one star to go on a different life cycle path compared to another?
Mass
What is a Jovian planet?
A large gassy planet. Jupiter, Saturn, Uranus, Neptune
As distance from the sun increases, what happens to a planets period of revolution (length of year)?
It increases
Which type of planet could best support human life?
Terrestrial
What type of star is our Sun?
A main sequence star
Which type of stars will Supernova in their lifetimes?
High Mass Stars
List the 4 Dwarf Planets listed on our Reference Table.
Ceres, Pallas, Pluto, and Eris
As the disatance from the sun increases, what happens to a planets orbital velcoity (speed)?
It decreases
What type of star could best support an Earth like planet?
Main Sequence
What is the name of the process that our sun does in order to make energy? What layer of the star does this take place in?
Nuclear Fusion, takes place in the Core
How long is our Sun's lifespan approximately?
10 billion years
Which of our 8 planets has the highest eccentricity?
Mercury- 0.206
What force causes planets to have high orbital velocities (speeds) when closer to the sun?
Gravity
How do we know taht our Sun is made of Hydrogen and Helium?
Emission Spectrums
Our sun goes through cycles of putting out more radiation, which creates sunspots. How long does it take our sun to complete one of these cycles?
11 years
Instead of fusing Hydrogen into Helium, later stage stars who have already fusef all of their Hydrogen will now fuse their Helium into what? Hint ESSRT p2
Carbon
What planet is closest in size to Earth?
Venus- 12,104 km
Earth- 12,756 km
Why is having a high eccentrcity (close to 1) not ideal when searching for an Earth 2.0?
Will not stay within the habitable zone and will make temperatures too variable.