If we could replace Saturn's rings with the rings around J1407b, they would be easily visible at night and be many times larger than the full moon.
The star's designation is J1407 a yellow dwarf similar to our sun. Observing the light from J1407, astronomers watched as the star darkened and brightened over a 56 day period. That's right!
With the enormous size of the rings, the eclipse the astronomers observed lasted 56 days!
Like its rings, J1407b is far larger than Saturn. In truth not a planet at all but a brown dwarf, a size classification somewhere between a planet and a star, or sub-stellar. Brown dwarfs are hot but they are not massive enough to fuse hydrogen. Brown dwarf bodies mass about 13 Jupiter masses for a low and 80 Jupiter masses for the upper limit.