Is the hubble space telescope faster or slower compared to celestron 8?
That depends on what you mean by "fast".Here are some statistics, from which the answer to the questionyou actually have in mind can probably be teased out:Celestron 8:Objective mirror diameter . . 8 inchesObjective mirror area. . . . . 50.3 square inchesFocal length. . . . . . . . . . . 2,032 mmFocal ratio. . . . . . . . . . . . f/10Speed. . . . . . . . . . . . . . . solidly anchored for observingHST:Objective mirror diameter . . 2.4 meters (94 inches)Objective mirror area . . . . . 7,012 square inchesFocal length . . . . . . . . . . . 57.6 metersFocal ratio . . . . . . . . . . . . f/24Speed . . . . . . . . . . . . . . . 4.66 miles per second (16,800 mph)And PLUS . . . Hubble operates with zero atmospheric absorption or turbulence.