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orbit: 73,600 km from Neptune
diameter: 193 km (208 x 178)
mass: ?
Larissa was the mother by Poseidon (Neptune) of Pelasgus.
Larissa was "officially" discovered in 1989 by Voyager 2 though it was observed in 1981 by Dave Tholen and colleagues using the stellar occultation method.
Like Proteus, Larissa is irregular (non-spherical) in shape and appears to be heavily cratered.
... Neptune
... Galatea
... Larissa
... Proteus
... 
