Hubble
Primary mirror is 2.4 meter in diameter
the mass of the mirror is 276kg
Designed to be serviced by astronaughts
Length of mission 25 years
Orbits the earth roughly every 95 minutes at a height of about 547km
James webb
Primary mirror is 6.5 meters in diameter.
the mass of the mirror is 828kg
Located too far from earth to be serviced astronaughts
Length of mission 5 to 10 years (limited to fuel)
Will be launched on an ariane 5 rocket and will take a month to reach the L2 orbital point
Placed in orbit around earth by astronaughts aboard the space shuttle descovery
Both use a mirror to collect and focus light
Both use solar panels to collect sunlight as the source of power
Both are located in space above earths atmosphere
Comparing the Hubble and the Webb
(author: Connor McElwain)