V=2PIr
T
V= 2PIx149,000,000
31,557,600
V=29.66 km/s
My graph:
\
1.35: Recall that solar system is part of the Milky Way galaxy
1.) What is a Glalaxy?
A large collection of billions of stars
2.) Which galaxy are we in?
Milky Way
3.) Source an image of our galaxy
4.) What type of galaxy are we in?
Spiral galaxy
5.) How many galaxies are there in the Universe?
billions
