NUV      1350-1750{AA}    GALEX         4.6 1 Young-to-intermediate age stars; B-star photospheres
FUV      1750-3000{AA}    GALEX         4.6 1 Young-to-intermediate age stars (<108yr); B-star photospheres
R        5631-7156{AA}    WIYN          0.6 2 Young-to-intermediate age stars (up to ~109yr)
Halpha a 6534-6606{AA}    WIYN          0.7 2 Ionized gas associated with young (<107yr), massive stars
3.6um    3.18-3.94{mu}m   Spitzer/IRAC  1.7 3 Old stellar populations; M-star photospheres
4.5um    4.02-5.02{mu}m   Spitzer/IRAC  1.7 3 Old stellar populations; M-star photospheres
8.0um  b 6.44-9.38{mu}m   Spitzer/IRAC  2.0 3 PAHs (linked with spiral arms, molecular clouds)
24um     18.0-32.2{mu}m   Spitzer/MIPS  6.  3 Hot dust near sites of high-mass star formation
70um     50.0-111.0{mu}m  Spitzer/MIPS 18.  3 Warm dust linked with star formation
160um    100.1-199.9{mu}m Spitzer/MIPS 40.  3 Cool, extended dust; infrared cirrus
H I      21cm             VLA          16.  2 Neutral, atomic gas