How long is the day and year of each planet? How would it affect us biologically, psychologically?

Answer 1

Mercury: Orbital period, 0.241 years. Rotation, 58.6 days.
Venus: Orbital period, 0.615 years. Rotation, 243 days.
Earth: Umm... duh.
Mars: Orbital period, 1.88 years. Rotation, 1.03 days.
Jupiter: Orbital period, 11.86 years. Rotation, 0.41 days.
Saturn: Orbital period, 29.45 years. Rotation, 0.44 days.
Uranus: Orbital period, 84.02 years. Rotation, 0.72 days.
Neptune: Orbital period, 164.8 years. Rotation, 0.67 days.
Pluto: Orbital period, 247.9 years. Rotation, 6.4 days.

How would the day and year affect us? Negligibly.

For the orbital period, this would really only affect any "seasons" on the other planets. However, given their lack of any true "climate", it doesn't seem like it would make much difference. Mercury is close enough to the sun that its temperature year-round is basically the same relative to human normals, i.e. inhospitable. The same is true for all planets (and moons) from Jupiter and outward; we would simply see them as incredibly cold, and any colonies there would need to generate such a large percentage of their own heat that any seasonal changes in temperature would be insignificant. Venus' thick atmosphere would make its surface about equivalent year-round. We would notice seasonal changes in Mars... if it had any free surface water with which to create a climate.

For rotation, modified "day length" would normally be thought to affect our sleep patterns. However, this again would be insignificant on any planet except for Earth. Mercury and Venus rotate so slowly that we would sleep and wake dozens and hundreds of times, respectively, within a single "day" or "night", making the effect moot. Mars' rotation is almost exactly that of Earth. All planets beyond Mars are so distant that the light from the sun would be negligible, and our primary light sources would be artificial, so we would completely ignore the planetary day/night periods.

Answer 2

not sure on the day...but a year is a year, the day would depend on the periodic rotation of any given planet. the day and the night would end up being longer or shorter. biologically, you would have to adjust your sleep/wake cycle, psychologically it would probably be similar to living say in Iceland, where in the summer the sun never sets and in the winter it never rises...hope this helps.

Answer 3

that's a good question! well I don't know the year but I do know that Jupiter, as massive and far away as it is from the Sun, spins so fast that it has 10 hour days! ...and something like 300 Earths could fit in it!!
an a year is not a year! i.e. Mercury most likely has a shorter year than Earth because of the distance from the Sun. for instance Pluto takes something like 5 Earth years to complete one Pluto year. it's all about the distance from the Sun!

Answer 4

well the length of day and night depends on how far the planet is from the sun, say pluto being the furthest from our sun, has much longer nights than days, and it is much colder because it is so far from the sun. well i am not sure how it affects us biologically and psychologically. but all i know is that the further from the sun, the longer days and years.

Answer 5

Check out Wikipedia for the exact figures.

It does not affect us at all.