Radius, Distance and Angle
- Radius, Distance and Angle
Fill in any two of the three fields to the left. Fill in two of the boxes below and place a "?" in the third box. You should specify units or the radius and the distance boxes, even if one of them has a "?".
The defaults describe the Earth as seen from the Moon.
This tool is really many tools in one. This tool calculates the missing item. It displays the angle, the visible portion of the surface, the distance to the horizon along the sphere's surface,and the distances to the nearest and farthest visible points as well as the radius. If you regard the sphere as flattened, this tools works quite well for calculating sizes and distances to nebulae, galaxies and globular clusters.
- This utility was authored by Les Coleman and is subject to Copyrights belonging to Les Coleman. This material may be referenced and reproduced as long as proper attribution is given as specified in Proper Usage Guidelines for Frosty Drew and Related Materials.