Quote:
Originally Posted by morls
Does this mean the point where the ecliptic and celestial equator intersect is 0hr 0' 0"? What do you mean by culmination moment?
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Exactly right

Culmination is a moment when particular object (or point on celestial sphere) is highest above horizon.
Quote:
Originally Posted by morls
I'm a bit confused by this...I thought the ascending node was the point at which an object's plane intersects the ecliptic as it moves from south to north?
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Sorry, I made a mistake here

What I meant was Vernal Equinox point (
http://en.wikipedia.org/wiki/Ecliptic)