Roche-1

Roche-1
The Roche-1 system has three planets very, very close to the Roche limit.

Star-
The Star is a B-type blue giant, roughly 4 million years old.

Planets-

 * Roche b- It is a small, Mercury-sized planet with a heated existence of 15,000 miles away from the Roche limit. It is stretched and Potato-shaped, migrating inwards at a rate of 1/4 of a mile a year. It is expected to be pulled apart in less than 300 years.
 * Roche c- Farther away from the Roche limit, it is an ellipsoid-shaped gas giant, slowly disappearing due to solar flares.
 * Roche d- Locating at the borderline habitable zone, it swings close to it's star, at perihelion it is 0.3 AU away, farthest 6.4 AU. Temporary seas are formed every time it passes through the habitable zone, and last for about a 43 days.