Sentences with phrase «airless planet»

a. Airless planet.

An airless planet (oid) is a gray body and Stefan - Boltzmann applies.

So the symmetry we'd experience on an airless planet like Mercury is replaced with inequality: day is favored over night.

Not exact matches

But even on Mercury, the sun's closest planet, the thermometer drops below — 300 degrees F because its dark, airless nights last the equivalent of three of our months.

A small temperature difference between the two sides of Proxima b would suggest the presence of an atmosphere or ocean to redistribute heat whereas a large thermal contrast would indicate the planet is a dry, airless rock.

In that case the whole atmosphere might have frozen and snowed out on the dark side, leaving the planet airless and barren.

Even though density measurements suggest that Ceres is roughly one third water by weight, water ice should rapidly sublimate away into space on the dwarf planet's airless, sun - soaked surface, so its absence at first would seem to be no surprise.

Earth's atmosphere behaves in the same way, keeping the planet's average temperature at 59 degrees Fahrenheit rather than the chilly zero degrees it would be if our world were airless.

Mercury's bleak, airless surface is similar to the moon's, so scientists have long been puzzled why the planet reflects so much less light than our lunar satellite.

But the crewmember is not actually dead, and he wakes to find himself abandoned and alone in the airless, inhospitable waste of the Red Planet.

The lack of buffering is why airless bodies and the skins of spacecraft display much greater temperature variations than the surface of planets like the Earth.