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Planets

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By *arleyfatboy2019 OP   Couple
over a year ago

Devon

Nothing to do with sex . However I think someone will probably turn it that way!!!

Question.

Why are planets round?

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By *ob Carpe DiemMan
over a year ago

Torquay

Gravity

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By (user no longer on site)
over a year ago

Well the Earth is flat so...

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By *ob Carpe DiemMan
over a year ago

Torquay

Except planet toblerone of course

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By *ovegames42Man
over a year ago

london

Because the gods used to like playing marbles

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By (user no longer on site)
over a year ago

Maybe erosion from cosmic winds in the planets early stages?

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By (user no longer on site)
over a year ago

Yep gravity

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By *alandNitaCouple
over a year ago

Scunthorpe


"Well the Earth is flat so..."

Flat but round like a record?

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By *ob Carpe DiemMan
over a year ago

Torquay


"Yep gravity "

Except Toblerone of course

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By (user no longer on site)
over a year ago


"Yep gravity

Except Toblerone of course"

Of course

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By *dsindyTV/TS
over a year ago

East Lancashire

No planet is round.....none....not one single one discovered is round....NOT ONE.

Why I hear you ask? Why?

Well, to answer your question and sate your curiosity, the reason is rotation.

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By (user no longer on site)
over a year ago


"No planet is round.....none....not one single one discovered is round....NOT ONE.

Why I hear you ask? Why?

Well, to answer your question and sate your curiosity, the reason is rotation."

They don’t all rotate

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By *arleyfatboy2019 OP   Couple
over a year ago

Devon

So. The planet when it rotates appears round ??

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By *dsindyTV/TS
over a year ago

East Lancashire


"No planet is round.....none....not one single one discovered is round....NOT ONE.

Why I hear you ask? Why?

Well, to answer your question and sate your curiosity, the reason is rotation.

They don’t all rotate "

Yes they do....some moons may be tidally locked, and Venus is locked in a near solar lock (243 day rotation versus 224.7 day orbital but still has a rotation) hence rotation stress will cause them to bulge at their equatorial region.

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By *ob Carpe DiemMan
over a year ago

Torquay

They are not perfectly round of course but overall they are better described as round than any other shape.

Anyway Victoria Coren Mitchell is on TV so my attention is diverted

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By (user no longer on site)
over a year ago

It like when you play with plasticine, it all just ends up as balls. Cosmic plasticine planet twiddling.

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By *alandNitaCouple
over a year ago

Scunthorpe


"No planet is round.....none....not one single one discovered is round....NOT ONE.

Why I hear you ask? Why?

Well, to answer your question and sate your curiosity, the reason is rotation."

Surely they're round around the equator, but not through their rotational axis?

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By (user no longer on site)
over a year ago


"No planet is round.....none....not one single one discovered is round....NOT ONE.

Why I hear you ask? Why?

Well, to answer your question and sate your curiosity, the reason is rotation.

They don’t all rotate

Yes they do....some moons may be tidally locked, and Venus is locked in a near solar lock (243 day rotation versus 224.7 day orbital but still has a rotation) hence rotation stress will cause them to bulge at their equatorial region."

Yes your absolutely right I do apologise I just had a quick google and I was thinking tidally locked once again sorry

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By *dsindyTV/TS
over a year ago

East Lancashire

https://www.bobthealien.co.uk/solarsystem/table.htm

This should help re orbital period v rotation.

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By *dsindyTV/TS
over a year ago

East Lancashire


"No planet is round.....none....not one single one discovered is round....NOT ONE.

Why I hear you ask? Why?

Well, to answer your question and sate your curiosity, the reason is rotation.

Surely they're round around the equator, but not through their rotational axis?"

No, they bulge at different points due to solar tides...so not round.

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By *dsindyTV/TS
over a year ago

East Lancashire

Ohhhh but I do love celestial mechanics

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By *affeine DuskMan
over a year ago

Caerphilly


"Nothing to do with sex . However I think someone will probably turn it that way!!!

Question.

Why are planets round? "

They came round for sex because people can't come round.

I had a wonderful time with uranus, OP.

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By *ovegames42Man
over a year ago

london

Gravity.

Pulls equally on all sides, pulling from the centre this pulls molten material inwards to wards the planets centre. The core

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By *alandNitaCouple
over a year ago

Scunthorpe


"Ohhhh but I do love celestial mechanics "

Are these the blokes who service space-ships?

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By *dsindyTV/TS
over a year ago

East Lancashire


"Ohhhh but I do love celestial mechanics

Are these the blokes who service space-ships?

"

that made me laugh

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By *ichaelsmyMan
over a year ago

douglas

the gravity effect of the sun causes earth to bulge at the equator, not the rotation of the earth.

our own moon causes the tides on earth, so isn't tidal locked to the earth, the moons gravity causes the tides on earth.

the moon rotates on it's own axis at the same speed as it orbits the earth, so it always faces the same way to earth.

there is no dark side of the moon, as it faces the sun and so is illuminated by the sun. and the earth casts a shadow onto the moon.

the moons orbit and size, equates to the different distance and size of the sun. which is why we have eclipses.

planets are not round because gravity is trying to pull it together and rotation is trying to pull it apart,

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By (user no longer on site)
over a year ago

What about the disc which is resting on the backs of four huge elephants, which are in turn standing in the back of an enormous turtle called Great A'Tuin?

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By (user no longer on site)
over a year ago


"What about the disc which is resting on the backs of four huge elephants, which are in turn standing in the back of an enormous turtle called Great A'Tuin?"

a fellow fan

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By *emorefridaCouple
over a year ago

La la land


"What about the disc which is resting on the backs of four huge elephants, which are in turn standing in the back of an enormous turtle called Great A'Tuin?"

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By (user no longer on site)
over a year ago


"Because the gods used to like playing marbles "

And still do

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By (user no longer on site)
over a year ago


"Well the Earth is flat so...

Flat but round like a record?"

But enclosed like a terrarium

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By (user no longer on site)
over a year ago


"No planet is round.....none....not one single one discovered is round....NOT ONE.

Why I hear you ask? Why?

Well, to answer your question and sate your curiosity, the reason is rotation.

They don’t all rotate "

Name one that doesn't....

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By (user no longer on site)
over a year ago


"They are not perfectly round of course but overall they are better described as round than any other shape.

Anyway Victoria Coren Mitchell is on TV so my attention is diverted"

Oblate spheroid is the term you are looking for...

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By (user no longer on site)
over a year ago


"What about the disc which is resting on the backs of four huge elephants, which are in turn standing in the back of an enormous turtle called Great A'Tuin?"

Shhhh. Not everyone knows the truth!!

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By (user no longer on site)
over a year ago

The 800th episode of the Sky at Night is on currently incase anyone is interested

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