76 years
Halleys comet comes back around every 76 years.
You will if you live to be 62 or 63 years old.
early 2062
That is Halley's comet, named after English astronomer Edmond Halley,
It takes 75 years
No, a comet will NOT hit earth in 2012.
Approximately every 76 years 1986 + 76 = 2062
Probably several times. It is assumed that a third of Earth water came from comets and it was a comet that hit the Earth 65 million years ago and caused the dinosaur extinction.
It takes roughly 75 years for Halley's comet to come by the earth. All comets orbit the sun, but they do not all originate from the same place, which accounts for their paths and how long their individual orbit takes.
Halley's Comet
Comet Lulin will not hit the Earth; it won't even come especially close.
I thought Halleys comet was every 78 years, hang on, I'd better check, I remember NOT seeing it last time it came around & I thought that was in 1988 ! I was close ! 75 to 76 years is the return, so it was say 1976 when I saw it (Not)+75 years, you got to wait until 2061 or so, I wont be around to tell you to look up !