Walkabout the Galaxy
New Horizons; Charon; Kuiper Belt; Arrokoth
Astrophysics and Astronomy | Physics
Journey with us to the far reaches of the outer solar system where we take a closer look at two small objects explored by New Horizons: Pluto's moon Charon and the Kuiper Belt Object Arrokoth. Charon's atmosphere goes through dramatic seasonal pulses that may explain its odd, reddish polar cap, while Arrokoth has the density of a fluffy snowbank 30 km long. There's some crazy stuff out there.
The Phase Function
You may have some smooth moves on the dance floor, but if you want to get your electromagnetic radiation scattering perfectly lined up too, you'll need the phase function. Available in different configurations to match your surface, the phase function is your one-stop solution to determining the reflectance of an object under any viewing and lighting conditions. Quickly and easily use the phase functions to check for forward scattering and back scattering; for a small additional fee, enhance your phase function with the opposition effect. We're sure you'll have no opposition to calculating brightnesses with the phase function. The phase function, sense and simplicity (Phillips).
© Joshua Colwell, All Rights Reserved
Length of Episode
Colwell, Joshua; Dove, Adrienne; and Sargeant, Hannah, "Two Odd Balls: Charon and Arrokoth" (2022). Walkabout the Galaxy Podcast. 210.