One of MagAO’s specialties is high contrast imaging in the visible using simultaneous differential imaging (SDI). For this run we bought a new H-alpha SDI filter set, and tonight we really put them to use. This image compares our on and off H-alpha PSFs. These are formed from 1 hour of 45 second exposures. No strehl selection or any other shady tricks.
We close tonight with deep thoughts by T. J. Rodigas: “What I’m worried about is human knowledge after the Earth is destroyed . . . we should beam it up to the space station.”