3 ms·
I think the section “Atmospheric refraction and the solar limb” near the end of the article addresses this.
by sunshinesnacks 2y ago
I think the section “Atmospheric refraction and the solar limb” near the end of the article addresses this.
- madcaptenor 2y agoNot exactly; even after the sun is fully below the horizon there's some light. See the interactive graph - the times aren't long enough for twilight. But you can use a larger value of "a" in the equation above it to make that change.
- sunshinesnacks 2y agoYeah, you’re right. Something like civil twilight, as you mentioned above, should get it closer to what is being discussed here.