The Erthan Orrery
Written By: Geoffrey Schumann
Published: May 12th, 2026
The Erthan Orrery brings the celestial mechanics of Ertha to life. Watch Trinity Suns and Septarch Moons dance through the sky over 500,000-day Great Ages. Navigate to any date in Erthan history to see exact planetary positions.
Erthan Orrery - Celestial Mechanics
Time Complications
Time
1
of 26
Season
Verdance
Phase
Day
✧ Dawn ✧
5.5 - 7.5
✧ Dusk ✧
18.5 - 20.5
Great Age
0
Cycle
1/1000
Day
1/100
Total Days
0
Days to Great Age
500,000
Viewing from Northern Hemisphere
Date Navigator
Set precise date for campaign events
Motion Controls
Manual Stepping
Preset Speeds
Lifelike: 1 day per minute • Age: Advance to Great Age
Speed Throttle
Slower
1x hrs/sec
Faster
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