Unless in special cases, the images here are 2MASS Atlas representations. As IR is invisible, these are all false-color IR images. The atlas representations are coded into visible colors by mapping 3 IR wavelength bands into colors: J light (1.2 micron) into blue, H light (1.6 micron) in green, and Ks light (2.2 micron) into red. Thus, blueish colored objects are brightest at shortest wavelengths (closest or "nearest" to visible, "warmest" or "hottest"), grey or white objects are about equally bright throughout this part of the IR spectrum, and brown or red objects are brighter to the cooler, longer-wavelength ("farther" IR) part of the spectrum.
Last Modification: August 17, 2001