I know that the brightness of an object from Kuiper's belt is 18,7; the distance from sun is 97 AU, i know that the maximum of energy in radiance is in IR and the length of wave is 1,5 *10 ^(-4) m. and the parameters of Sun are also known... how to count the diameter and albedo of the object? I know i must count the temperature and emission of heat... but how to do the rest - no idea.
2006-11-08 06:11:08 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Hi. Albedo results from two properties, reflectance and illumination. The illumination follows the inverse square law so, knowing the distance, you can calculate the actual illumination. Diameter vs albedo is a tougher problem because as one goes up the other goes down. If you assume a relatively pristine ice body you can make a pretty good guess. Short of an occultation that seems to be about as good as you can get.
2006-11-08 06:20:43 · answer #1 · answered by Cirric 7 · 0⤊ 0⤋