Science Forums 2

[Turtle]

Originally Posted by Essay

Lunchtime again: gotta run now
Do they mean in terms of T?

I haven't a clue.
===

Originally Posted by Es Ay

They say:
"The poles are projections of the Earth's orbital poles."
I take this to mean the poles projected up from a plane through our inscribed orbit (not through our planets equator). So wouldn't this be pretty much the same as the sun's poles?

Again, not sure. I think the ecliptic is more-or-less a mean because none of the planets orbit in the same plane? Perhaps our focus ought go to this: PHY 445/515: Coordinate Systems

Originally Posted by Stunny Broke

The origin [of the ecliptic] is the same as that of the celestial system.

Originally Posted by E Say

I admit that as my first impression (metaphor) of the solar system and galaxy, I imagined them as parallel; but as my first post said, years ago something made me figure that they were perpendicular ...and traveling South.

But I still think the solar ecliptic is tilted up around 90 degrees relative to the galactic equator.

Earth's orbit is tilted ~7 degrees relative to the solar ecliptic and the planet is tilted ~23 degrees relative to that orbit, but I don't know if they have an additive or cancelling effect relative to the solar ecliptic.

But whichever, I think that is why that blue band of the solar system appeared (from Earth) to be offset by about 30 degrees from the galactic perpendicular.

Thanks for the help ,

~

The picture says it all for me; except of course which pole leads still. Whether 30º or 60º, it's 30º, 60º, 90º all around and that is rather interesting to note in its own right.