planet 128Cat-eLog Data Sheet; Scientific Name: Hemiancistrus sp. (L128) , 1993: Common Names: L128, Blue Phantom Pleco Blå Fantom-sugemalle ()Etymology: Greek, hemi = the half. WhileRoss 128 b is a super Earth exoplanet that orbits a M-type star. Its mass is 1.4 Earths, it takes 9.9 days to complete one orbit of its star, and is 0.0496 AU from its star. Its discovery was announced in 2017.