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questions about pandora

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emanresu:
Hello;

Don't know if this is the right forum for asking this but....

Does anyone know the specifics of the Pandora moon's orbit around Polyphemus? (distance from the primary, length of month/time of orbit, etc)

Can anyone tell me the length of the Pandoran day?

And most importantly since James Cameron never seems to cover this, is Pandora tidally locked to Polyphemus?
If not, how does Cameron justify this?

Thanks. Have looked online, but cannot find any information on this.

Toliman:
Kaltxì ma emanresu :) Welcome here!

This are difficult but interesting questions.

Maybe you already found this picture too:
http://orig07.deviantart.net/a5e6/f/2013/088/8/c/avatar__the_alpha_centauri_system_by_okiir-d5zo7h9.png

Something little is here:
https://james-camerons-avatar.fandom.com/wiki/Pandora


--- Quote from: emanresu on October 18, 2019, 03:08:46 pm ---And most importantly since James Cameron never seems to cover this, is Pandora tidally locked to Polyphemus?
If not, how does Cameron justify this?

--- End quote ---
I would expect that Pandora must be tidally locked to Polyphemus due to relative proximity of Pandora to Polyphemus, however I didn't found nothing about it. If not, I would be very interested too ;D

archaic:
Welcome emanresu.


I would dearly like to know the answers to these questions as well.

I have seen a good bit of speculation about these, but nothing cannon.

If Pandora is not tidally locked, it may be due to the other moons in orbit around Polyphemus causing sufficient gravitational disturbance that a tidal lock hasn't formed, at least not yet.

If you do find the answers, please, please, please do come back and share them, I know a lot of us here would love to know!

 :D  :D

Toliman:

--- Quote from: archaic on October 23, 2019, 01:29:15 pm ---If Pandora is not tidally locked, it may be due to the other moons in orbit around Polyphemus causing sufficient gravitational disturbance that a tidal lock hasn't formed, at least not yet.

--- End quote ---
Hmm, maybe it's possible too however it would be really big gravitational disturbances, when we consider that all big (+ many smaller) moons at solar systems are tidal locked (for example, eight the closest moons of Jupiter or all five big moons of Uranus). Also, Pandora sure orbiting Polyphemus in small distance (when we consider how big is polyphemus on Pandorian sky) and I would say that gravity of Polyphemus must be dominant in this distance.

archaic:
Agreed. Tidally locked is highly likely, which means that some parts of Pandora would never see Polyphemus.

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