HD 37124 which i personally call as Norn, is very hollowed star because of all its planets guessed habitable can be the true either more likely to be that from the factor their place can harbour habitable satellites for the bodies not smaller than Mars. But, they are not a a lot more habitable than the earth is caused the reason they are Jovian(Neptupian more habitable with their gravity weaker than the Jovian would rule almost activity on surface like eruption or earthquake stand for what said and mentioned before) of which tidal force extremely strong. therefore the thing is confirmed the insolation so much as the Earth not good the moon with near the Jovian. However, now is for a chance given for us to let us be known about Norn lets us be as we are to get more thing Norn.

HD 37124 b which i personally call as Urdr, the nearest planet and exposed the more insolation than Venus, but less than Mecury, can have a moon in a form like the Earth, though it hard to keep its ecosystem. However, it"s rotation axis is inclined like Saturn, so story like this can begun: During the spring, the moon of Urdr is habitable enough, the mean and global temperature of it is about 30C. but, at the beginning at the summer. the hemisphere exposed more to the light of the star getting higher and higher by getting too high the half of the moon heated so hot as 70C means no life can live on the moon.

So now we need to find life on the planet HD 37124 c which i personally call as Verdandi, exposed to less the insolation than Mars. since it have been take less energy than Mars, someone can think it is not habitable, whilst likely not to be true. because Verdandi is massive planet can make its moon active with gravity goes to the answer that hydrothermal vents are for the solution of lacking insolation could cause total freezing able to be so when the moon is a planet or trojan. Verdandi help the planet to erupt its volcanoes generate greenhouse gas, neither of the results worse that is rather than good than it with no greenhouse gas nor earth-like atmosphere. thereafter the civilisation like our own can be appeared on the surface of the moon.

However, HD 37124 d which i personally call as Skuld, it is a Jupiter-twin planet. Skuld is so cold to harbour life, but there is possibility that has been proved by Europa, the moon of Jupiter, is how to keep ecosystem by way of making the core active for many hydrothermal vents.

The Universe is large, and we are so small. remain it.