Stars I
These are the clouds of dust and gas that are used to form stars.
What is an interstellar cloud?
This is what happens to a massive star when the core begins to collapse and become much hotter and brighter.
What is become a red supergiant?
This is the galaxy that is on a collision course with our galaxy.
What is the Andromeda galaxy?
These are the phases of the moon in order from a new moon.
What is new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter, waning crescent?
These are the times of the year when there is an equal number of daylight and nighttime hours.
What are the autumnal and vernal equinoxes?
This is what happens to the spinning clouds of dust and gas before the protostar is formed.
What is collapses from its own gravity?
This is the explosion that occurs when a massive star uses up all of its fuel.
What is a supernova?
This is how we have gotten most of our initial learning about galaxies.
What is the Hubble Telescope?
This is the reason we have seasons.
What is the tilt of the Earth's axis and the sun's angle of incidence the results, as well as the revolution of the Earth around the sun?
These are 3 ways that an astronomical unit is defined.
What is the distance between the sun and Earth, 93,000,000 mi, and 150,000,000 km?
This is the type of star that "lives" the longest and has less fuel.
What is a main sequence or average star?
This is what happens to a main sequence star in its final stages of life when the core is exposed.
What is form a white dwarf?
This is the difference between an "Sa" spiral galaxy and an "Sc" spiral galaxy.
What is the "Sa" type is more tightly wound?
This is what happens when part of the Earth's shadow blocks some of the Sun's light from the moon when the moon is in the outer shadow.
What is a prenumbral lunar eclipse?
This is how Eris, Ceres, and Pluto are classified.
What are as dwarf planets?
This is the second element that is formed in stars.
What is helium?
This is why massive stars die faster than main sequence stars.
What is because it is hotter the nuclear fusion happens more quickly and the fuel is used up?
This is the percentage or fraction of the number of galaxies that are spiral.
What is 2/3?
This is one of the reasons why we have had climate change throughout the history of the Earth.
What are the Milankovitch Cycles?
These are the two stars to which the Earth points in a cycle of 13,000 years.
What are Polaris and Vega?
This is how stars are powered. Go into detail.
What is the nuclear fusion of hydrogen atoms.
From most massive and hottest to smallest and coolest, this is the order of the star classification system.
What is O,B,A,F,G,K,M?
These are the different types of galaxies.
What are irregular, spiral, barred spiral, and elliptical?
These three things are what results from increasing Carbon Dioxide levels in our globe.
What is sea ice melting, rising ocean waters, and increased temperatures?
This is the range of the obliquity of the Earth's tilt.
What is 22.1 degrees to 24.5 degrees?