Is the same as Spring Equinox
The Earth's axis is tilted
the outermost region of the sun's atmosphere
Used to account for 1/4 of a day each year. Every 4 years add 1 day (February 29).
Speed of light
the galaxy containing the solar system
The study of an objects in space, star, planets, comet, and their origin
a single complete turn (axial or orbital)
the largest planet and the 5th from the sun
goddess of love
the smallest planet and the nearest to the sun
the 4th planet from the sun
a giant planet which is surrounded by three planar concentric rings of ice particles
Spins on a nearly horizontal axis (sideways)
roman name for Poseidon
Earth rotates around its axis __________each day
a very small dying star that gives off very little light
final stage in the evolution of a supernova, in which the core's mass collapses to a point that is has no volume and whose gravity is so strong that not even light can escape
When stars run out of hydrogen, they become a ______ or planetary nebula
the distance light travels in one year
the closest star to Earth besides our sun
known as a mighty hunter
International Astronomical Union
IAU; It officialized the constellations
dust and gas
Other than stars, what is the Milky Way made of?
Which way is the Milky Way rotating?
What is the sphere surrounding the Milky Way called?
Over 100 billion stars
How many stars are in our galaxy?