Combined VIS and NIR reflectance spectrum of 66P is shown as the blue line. Some emission-like features in the NIR part are due to imperfect removal of the telluric absorption bands. The spectrum of the MBC, 358P, was taken with X-shooter and is from Snodgrass et al. (2017b). Spectrum of the JFC, 6P/d’Arrest, was observed with the IRTF telescope and is from Yang (2009). The comet continuum shows a red spectral slope, which is similar to the D-type (shown as the red dashed line) and significantly deviates from the C-type (shown as the black dashed line). Three asteroid spectral classes are taken from DeMeo et al. (2009).