Sunlight Calculator

Eclipse & sunlight time in orbit

Disclaimer: Beginner experimental tool — results may not be accurate. For educational use only.
What is this calculator? (Click to expand) ▼
Watch the satellite change appearance as it enters the central body's shadow.

• Bright cyan + glow = **Sunlight**
• Dim blue + red tint = **Eclipse**

Best with low beta angles (try 0°). Note: Orbiting the Sun has no eclipse.