600,000,000,000,000,000,000,000,000,000
A comet with a period of 200 years or more.
comet shoemaker is aredy gone, it does not have a period.
That depends on what you call 'long' or 'short'. Halley's period is in the neighborhood of 75 years, give or take a few years. Since that's short enough for two perihelions to occur within a single human lifetime, I guess it ought to be considered a short period.
It changes so it will next be seen in 4337
Halley's Comet does not rotate, but perhaps you mean revolve, as in how long it takes to revolve around the sun.If that is what you mean, then the revolutionary period of Halley's Comet is about 75-76 earth years.
The tempel tuttles period is 405000000 years long!
A comet with a period of 200 years or more.
A comet with a period of 200 years or more.
Long period comet
Comet (C/2010 X1 (Elenin)) is a long-period comet.
The orbital period of Halley's Comet is about 75.3 years.
each 76 years
comet shoemaker is aredy gone, it does not have a period.
Between 74 and 76 years.
Not more than 200 years - less than 200 years. As to the "why", that's because this is how "short-period" vs. "long-period" is defined. Any comet that takes less than 200 years for one revolution is defined as short-period.
Long period comets originate in the Oort Cloud.
That depends on what you call 'long' or 'short'. Halley's period is in the neighborhood of 75 years, give or take a few years. Since that's short enough for two perihelions to occur within a single human lifetime, I guess it ought to be considered a short period.