around 2061
It's unclear what you mean by "hades comet." If you are referring to a comet named Hades, there is no specific comet with that name. If you meant Halley's Comet, it will next be visible from Earth in 2061.
The next visible comet that is expected to be visible to the naked eye is Comet Leonard in late 2021.
The next notable comet expected to be visible in the northern hemisphere is Comet Leonard (C/2021 A1) in December 2021. This comet is predicted to be visible to the naked eye and is anticipated to be a significant event for skywatchers.
The next comet will be Comet Ison which will pass by the earth in 2013. It will be visible with lenses during late summer and will be visible to the naked eye by approximately November.
The next notable comet scheduled to pass by Earth is Comet Leonard, which is expected to be visible in December 2021. It will be the brightest comet of the year and should be observable with binoculars or a small telescope from dark sky locations. Keep an eye out for updates from astronomers as the date approaches for the best viewing opportunities.
2012
2061
The next predicted perihelion of Halley's Comet is 28 July 2061
pretty much I've read about these comets and the next comet will strike in the year 2015. I'm not sure when other comets will strike....
Halley's comet is not predicted to hit Earth in the foreseeable future. The next time it will be visible from Earth is in 2061.
2062.
2062