Universe
How old is the universe
14.8 billion years old (12-15 billion years old)
a big collection of gas dust and billion of stars
galaxy
name the 4 terrestrial planets
mercury, venus, earth, and mars
What layer of the sun gives off the light?
Photosphere
A celestial body of ice, dust, and rock with an elongated and elliptical orbit
A Comet
What is the big bang theory?
a massive explosion that created the universe and its contents
What are the 5 main life stages that low mass stars, including our sun, will go through?
Nebula, Protostar, Main Sequence, Red Giant, Dwarf (White)
name the 4 Jovian planets
Jupiter, Saturn, Neptune, and Uranus
We characterize stars based on what 3 characteristics
1. Color/Temperature
2. Size/Life Stage
3. Brightness/Luminosity
The movement of one object around a center or another object
Revolution (Orbit)
What is the process that powers all stars?
Fusion
Our solar system is found in which galaxy?
Milky way (Spiral)
Which planet has the longest revolution?
Neptune
The last stage in a stars life where only a carbon core remains is called ________.
Dwarf
Which color in the spectrum is associated with the hottest stars?
Blue
What is Edwin Hubble credited with that supports The Big Bang Theory?
Doppler Shift or Red Shift
What are the two main gases that are common in 90% of stars?
Hydrogen and Helium
Where is the Asteroid Belt located?
between Jupiter and Mars
What determines the characteristics and life stages of a star, including how long it will live?
The mass of the star or the amount of matter available when the star forms.
Which planet has the lowest density and we think would float in water?
Saturn
How does our understanding of the Doppler effect allow us to understand the movement of stars and galaxies
Light shifts towards blue if an object is moving towards us (blue to you) and it shifts to red when it is moving away.
1) Distances outside our Solar System are measured in ?
2) Distances inside our Solar System are measured in?
1)Light Years
2) Astronomical Units
Which planet is the hottest and what causes the high temps?
Venus, Extreme Greenhouse Effect
The type of star/life stage) our sun is
Main sequence ( yellow)
During a Solar Eclipse, what layer of the Sun would still be visible?
What is the Corona