  Low-energy neutrinos are clean messengers from supernovae explosions and
probably carry unique insights into the process of stellar evolution. We
estimate the expected number of events considering coherent elastic scattering
of neutrinos off silicon nuclei, as would happen in Charge Coupled Devices
(CCD) detectors. The number of expected events, integrated over a window of
about 18 s, is $\sim$ 4 if we assume 10 kg of silicon and a supernovae 1 kpc
away. For a distance similar to the red supergiant Betelgeuse, the number of
expected events increases to $\sim$ 30 - 120, depending on the supernovae
model. We argue that silicon detectors can be effective for supernovae
neutrinos, and might possibly distinguish between models for certain target
masses and distances.
