Analysis of information sources in references of the Wikipedia article "M110 (橢圓星系)" in Chinese language version.
From p. 262: "There is a very considerable, broad, pretty faint, small nebula near it [namely, the Andromeda galaxy, M31]; my Sister [Caroline] discovered it August 27, 1783, with a Newtonian 2-feet sweeper. It shews the same faint colour with the great one, and is, no doubt, in the neighborhood of it. It is not [M32] … ; but this is about two-thirds of a degree north preceding it, in a line parallel to β and ν Andromedae."