Spectral Classes, Temperatures, and Doppler Shifts

In the deathless boredom of the sidereal calm, we cry with regret for a lost Sun. 

TThe next morning Bob slowly sits up in bed, pushes aside his blankets, and turns on The Today Show. The remote control is temporarily embedded in his right hand. Bob pushes a button, and one of the Picasso paintings on his wall suddenly transforms into a TV screen. 

Bob likes his large bedroom in the museum ship. He looks out the windows at the stars. The more recognizable constellations are unmistakable. Orion s square shoulders and feet. The beautiful zigzagging Cassiopeia. The enigmatic Pleiades. They all remind him of life back on Earth where he studied the con- 

There is a knock at his door. Sir, Miss Muxdroozol and I are ready for today s star lessons.  

Miss Muxdroozol is wearing blue jeans—how retro —and a beige T-shirt with a picture of Johann Balmer. She obviously likes Bob s lessons. 

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