Earth
What is rotation?
How long does it take for the moon to orbit and go through all the phases?
27.3 days ~ 1 month
What process happens when Hydrogen is changed to Helium in a star?
Fusion
Where is the Asteroid Belt located?
between Mars & Jupiter
What is the purpose of the H-R Diagram?
plots luminosity (brightness) vs surface temps of stars
What is the tilt of the Earth's axis?
23.5 degrees
What lunar phases are considered to be "growing"?
What part of the internal structure is 20% of the Sun's mass?
Core
When an object enter's Earth's atmosphere (shooting star).
Meteor
What is the lifecycle of a small/medium mass star?
Nebula - protostar - sm. star - red giant - planetary nebula - white dwarf
What is an Equinox?
What is a Solstice?
Equal sun distribution on N/S hemispheres
Max sun distribution in one hemisphere
What lunar phases happen when the Earth, Sun and Moon are lined up?
Full/New Moon
Which layer is visible to us?
Photosphere
What does a comet need in order to be considered a comet?
Coma
actively fuse H to He
What causes Earth's seasons?
Tilt of Earth
What lunar phase is when the Moon is at a 90 degree angle from the Sun?
First/Third Quarter
Where is the moon in a lunar eclipse?
Moon, Earth, Sun- in Earth's shadow
Astronomical Units (AUs) are used where?
Within the solar system
What is the life cycle of a massive star?
Nebula - massive star - red supergiant - supernova - neutron star OR black hole
What causes tides on Earth?
Moon's gravity changes the shape of the oceans
Why can we see the moon?
It reflects the Sun's light
What will the Sun end up as at the end of its life?
White Dwarf
When are lightyears used?
What is the name of the black hole in the center of our galaxy?
SgrA (Sagittarius A)