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Sunlight bounces around in the atmosphere, extending the length of the day both in the morning (before sunrise) and after sunset, roughly 30 minutes or so. Without an atmosphere it would be pitch black as soon as the sun set far enough for light to extinguish from any mountain slope eastward of you--the total day would be about an hour shorter.

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Q: If there were no atmosphere what will happen to length of day?
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Related questions

What happen to the length of the day on the earth If there is no atmosphere?

With no atmosphere, there would be no "twilight". Twilight is caused by the scattering of sunlight in the atmosphere. With no atmosphere, you'd go from "day" to "night" with nothing in between.


What would happen to the length of the day if you had no atmosphere?

Nothing - the length of 'day' on any planet - is the time it takes to revolve once on its axis. Relating to the Earth - that's approximately 23 hours 56 minutes.


What would happen to the length of the day if the length of the day took 40 hours?

If a day took 40 hours, then a day would take 40 hours.


What would happen to the length of a day if the rotations sped up?

It takes 24 hours (the length of one day) for the Earth to rotate once. If the rotation sped up, the length of a day would shorten.


What would happen to the length of the day if earth took 40 hours to rotate?

In that case, the length of the day would also be approximately 40 hours.


What would happen if the earths rate of rotation decreased what would increase?

The length of the day


What is the length of earth atmosphere?

10,000km


What day did D day happen?

I am doing D-Day for a huge WWII report.... actual length is June 6th to July 25th but D-Day itself is june 6th.


What would happen if the time of the earth's rotation were different from what it is?

A day would be a different length than 24 hours.


What will happen if the earth axis becomes vertical?

There would be no seasons, and the length of day & night would be exactly 12 hours each.


What would happen if the sun was touching the moons atmosphere?

Our moon has no atmosphere to touch.


Does weather happen throughout the atmosphere?

Yes