## How long is 1 day in space compared to Earth?

The definition of a day is the amount of time it takes an astronomical object to complete one full spin on its axis….The Earth is the only planet with an approximately 24-hour day.

Planet | Length of Day |
---|---|

Earth | 23 hours, 56 minutes |

Mars | 24 hours, 37 minutes |

Jupiter | 9 hours, 55 minutes |

Saturn | 10 hours, 33 minutes |

**Is the length of one day the same for all planets?**

Earth takes 24 hours to complete one spin, and Mars takes 25 hours. The gas giants rotate really fast. Jupiter takes just 10 hours to complete one rotation. Saturn takes 11 hours, Uranus takes 17 hours, and Neptune takes 16 hours.

**How long is a day on the outer planets?**

What Is The Length Of A Day In The Planets Of The Solar System?

Rank | Planet | Length of Day |
---|---|---|

5 | Jupiter | 10 hours |

6 | Saturn | 11 hours |

7 | Uranus | 17 hours |

8 | Neptune | 16 hours |

### What planet has 30 hours in a day?

This is also referred to as its rotational period. So, Venus has the longest day of any planet in our solar system. It completes one rotation every 243 Earth days.

**Does time run differently in space?**

Time is measured differently for the twin who moved through space and the twin who stayed on Earth. The clock in motion will tick more slowly than the clocks we’re watching on Earth. If you’re able to travel near the speed of light, the effects are much more pronounced.

**Which planet has longest day?**

Venus

It was already known that Venus has the longest day – the time the planet takes for a single rotation on its axis – of any planet in our solar system, though there were discrepancies among previous estimates.

#### Is it true that 1 hour in space is 7 years on Earth?

The first planet they land on is close to a supermassive black hole, dubbed Gargantuan, whose gravitational pull causes massive waves on the planet that toss their spacecraft about. Its proximity to the black hole also causes an extreme time dilation, where one hour on the distant planet equals 7 years on Earth.

**Will you age slower in space?**

Scientists have recently observed for the first time that, on an epigenetic level, astronauts age more slowly during long-term simulated space travel than they would have if their feet had been planted on Planet Earth.

**Which planet has shortest year?**

Mercury

Fastest Planet The closer a planet is to the Sun, the faster it travels. Since Mercury is the fastest planet and has the shortest distance to travel around the Sun, it has the shortest year of all the planets in our solar system – 88 days.

## Which planet has a longest day?

**Why do different planets have different length of days?**

Very simply, the time of a planets day is a product of its orbital velocity and mass, since all planets are different masses and are varying distances from the sun (Star), they, in turn, will have different lengths of their planet day.

**What determines the length of a day on any planet?**

The “canonical” (that is, commonly accepted) day length on Jupiter is determined by the rotation rate of its magnetic field, which is nine hours, 55 minutes long.

### Which planet has the same length day as Earth?

Mercury — 84.450 minutes/807,5 hours/58,67 days — 87,97 days

**How does the length of days on different planets vary?**

We can write a paragraph about how long days last on other planets. On Mercury a day lasts 1,408 hours, and on Venus it lasts 5,832 hours. On Earth and Mars it’s very similar. Earth takes 24 hours to complete one spin, and Mars takes 25 hours. The gas giants rotate really fast. Jupiter takes just 10 hours to complete one rotation.