We present the ensemble properties of 31 comets ( 27 resolved and 4 unresolved ) observed by the Sloan Digital Sky Survey ( SDSS ) .
This sample of comets represents about 1 comet per 10 million SDSS photometric objects .
Five-band ( u,g,r,i,z ) photometry is used to determine the comets ’ colors , sizes , surface brightness profiles , and rates of dust production in terms of the A f \rho formalism .
We find that the cumulative luminosity function for the Jupiter Family Comets in our sample is well fit by a power law of the form N ( < H ) \propto 10 ^ { ( 0.49 \pm 0.05 ) H } for H < 18 , with evidence of a much shallower fit N ( < H ) \propto 10 ^ { ( 0.19 \pm 0.03 ) H } for the faint ( 14.5 < H < 18 ) comets .
The resolved comets show an extremely narrow distribution of colors ( 0.57 \pm 0.05 in g - r for example ) , which are statistically indistinguishable from that of the Jupiter Trojans .
Further , there is no evidence of correlation between color and physical , dynamical , or observational parameters for the observed comets .