Calculate a radius for Pluto using Sun, Pluto brightness and albedo.
Spectroscopic observations suggest that Pluto is covered with icy frost and thus has a high albedo (0.5). The brightness of Pluto at opposition (38 AU from the Earth) is 2 x 10^-17 as bright as the Sun (1 AU from the Earth. From these two observations, calculate a radius of Pluto.
What was Jupiter's radius if it radiated as a blackbody?
According to theoretical models, 4 billion years ago Jupiter may have had a luminosity as high as 10^-2 Lo (Lo=luminosity of Sun) and a surface temperature of 1000K. What was Jupiter's radius then if it radiated as a blackbody?
Estimate the radius of asteroid
A newly discovered faint asteroid and Mars are observed at opposition. Mars is observed to be 100 million times brighter than the asteroid. Assume Mars and the asteroid are 1.5 and 3.0 AU from the Sun respectively. (a) Estimate the radius of the asteroid if it has an albedo of 16%. (b) Estimate the radius of the asteroid if it ...continues
What is the difference of theory in science and in other way other than science?
Synodic and sidereal period of moon
Why are the synodic and sidereal period of moon different?
why solor and lunar eclipses don't occur each month?
An arcsecond is what of a degree?
700 nanometers, the length of some waves of red light is equivalent to what meters?
A spacecraft, traveling at a typical attainable speed of about 25,000 kilometers per hour, leaves Earth and travels toward the closest star system to Earth, the Alpha Centauri system. The time for journey would be about how many years?
Could you tell me an outline of scientific method?
