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-   -   The ecliptic planes of the Milky Way and the solar system (http://www.physicsforums.com/showthread.php?t=209318)

pixel01 Jan17-08 01:09 AM

The ecliptic planes of the Milky Way and the solar system
 
Our Milky Way is a spiral galaxy whose ecliptic plane is the same with the ecliptic of the Sun (or nearly). So do you think all other solar systems in the Milky Way also have the same characteristics?

Garth Jan17-08 02:12 AM

The galactic plane is nowhere near the ecliptic (the Earth's orbital plane around the Sun).

They are inclined by about 600.

Garth

davo Jan17-08 10:28 PM

Quote:

Quote by pixel01 (Post 1573668)
Our Milky Way is a spiral galaxy whose ecliptic plane is the same with the ecliptic of the Sun (or nearly). So do you think all other solar systems in the Milky Way also have the same characteristics?

could be thats an interesting question though.

pixel01 Jan18-08 02:21 AM

Quote:

Quote by davo (Post 1574903)
could be thats an interesting question though.

My idea is this: in our solar system, almost all planets have equatorial planes somewhat in the ecliptic plane (or less than about 30 degrees inclined except for Uranus). So there may be a similarity in the galactic scale. Hope the solar system is not a 'Uranus' in the Milkyway.

FTL_Diesel Jan21-08 01:48 PM

I once asked this question at a conference, actually. The consensus was that the usual angular momentum variations in molecular clouds are much bigger than any sort of preference you'd get from the angular momentum of the galactic disk.

So no, probably no similarity on the galactic scale.


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