User:Ryan2012xxx/sandbox

Some super puffs are Kepler-11d, Kepler-36c, GJ 3470b, Kepler-18c, and lastly Kepler-18d. The best known are Kepler-51 b,c,d. Their density is about 0.1 g/cm³ or 0.06 oz/in³. Even a barrel of 160 Liters, or 42 gallons of Kepler-51b will weigh no more than 16 kg, or 35.2 lds, but a barrel of 160 Liter, or 42 gallons of sand will weigh 190 kg, or 418.8 lbs. What could cause this is a atmosphere of a mixture of H (Hydrogen) and He (Helium) and an layer of CH₄ (Methane). A pulsar named AR Sco is about 12,000km while our home planet is about 12,742km. AR Sco is a extremely rare White Dwarf Pulsar. The Sun goes through 4 stages which are the Main Sequence, Subgiant, Red Giant, and White Dwarf. The Sun's Red Giant Phase is going to be about 300,000,000 km,(186,411,357.671 mi) Antares is about 293.96 million mi in diameter. Our Sun is a G-Type main sequence star. Some puffy exoplanets: http://1.bp.blogspot.com/-aq3K5KnYaY4/UpmnAQDWAVI/AAAAAAAAATI/vLvKax8LsDg/s1600/Puffy+Planets.jpg