- #1
WildEnergy
- 35
- 0
Hi
I can't find a clear answer to this anywhere.
Can anybody confirm that the ecliptic plane for J2000.0 intersects these 3 points:
a) center of mass of sun @ J2000.0
b) center of mass of Earth @ J2000.0
c) center of mass of Earth @ 20 March 2000 07:35 UTC
Experiments with Celestia seem to confirm this.
But I am confused by the phrase "Mean Equinox at Epoch J2000.0"
Also does anybody know where to find the official definition?
Looking around the IERS website - never seem to find the actual full answer.
I can't find a clear answer to this anywhere.
Can anybody confirm that the ecliptic plane for J2000.0 intersects these 3 points:
a) center of mass of sun @ J2000.0
b) center of mass of Earth @ J2000.0
c) center of mass of Earth @ 20 March 2000 07:35 UTC
Experiments with Celestia seem to confirm this.
But I am confused by the phrase "Mean Equinox at Epoch J2000.0"
Also does anybody know where to find the official definition?
Looking around the IERS website - never seem to find the actual full answer.