For the purposes of this simulation, a pure-metal planet has a density of 8 grams per cubic centimeter (the density of iron) and a pure-rock planet has a density of 3 grams per cubic centimeter (an average value for silicate rock). Questions to Consider:
Depending on how cooked you like your hard boiled eggs, the eggs should be done perfectly in 10-12 minutes. That said, depending on your altitude, the shape of the pan, the size of the eggs, the ratio of water to eggs, it can take a few minutes more.. Turn off the heat, keep the pan on the hot burner, cover, and let sit for 10-12 minutes. If you have the type of stove burner that doesn't retain any heat when turned off, you might want to lower the temp to low, simmer for a minute, and then turn it off.
Step 5: They're Ready. Wait 4 minutes and you'll have perfect eggs  no sticking or breaking. The longer you cook the eggs, the harder the yolk will be. If you want a medium yolk, cook for 5 minutes. A hard yolk will set in 6. Tip: Fresher eggs are best since the whites are firm and hold their shape better.