Solar and Sidereal Days 2D

Initializing live version
Download to Desktop

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.

The blue disk represents the Earth and the red disk represents where you are on the Earth. Whenever the red disk passes over the orange line that points to the distant star, the next sidereal day has begun. Whenever the red disk next to the Earth is over the orange line that points to the Sun, the next solar day has begun.

Contributed by: Christopher Wolfram (August 2011)
Open content licensed under CC BY-NC-SA




Feedback (field required)
Email (field required) Name
Occupation Organization
Note: Your message & contact information may be shared with the author of any specific Demonstration for which you give feedback.