Planet EPIC 22881391 b
According to the link above, this planet's mass is 0.7 times Jupiter mass, and it's radius is, however, only 0.079 Jupiter radius.
What does this mean? Jupiter's mass is 1.898×10[sup]27[/sup] kg, and it's radius is 71492 km, so we could get the mean density of this exoplanet -- it's about 1.76×10[sup]6[/sup] kg/m[sup]3[/sup] ! We all know that Earth's mean density is about 5.514×10[sup]3[/sup] kg/m[sup]3[/sup], while a typical white dwarf has a density of between 10[sup]7[/sup] and 10[sup]10[/sup] kg/m[sup]3[/sup]. So EPIC 22881391 b is more likely a white dwarf, but not a planet, huh?
Or is it just a typo?