Re: Am I dense?
Correct -- at terrestrial density HD 40307g would be twice the radius/diameter (8x volume). At twice the distance from the center of mass, the 8x mass only provides 2x gravity (cut to 1/4 due to double distance). If you can carry your own weight on your back on earth, then you could theoretically walk there (ignoring the probable need for a space suit). If it's gaseous, then hard to define a surface, but it will have a much greater diameter, and lower gravity at the "surface." If it's a rocky core surrounded by lots of gas, it gets trickier, because the gas could be dense enough at the rocky "surface" to provide significant buoyancy (possibly even liquid, depending on temp and pressure -- we might then define the surface as the top of the "ocean").
Biting the hand that feeds IT
