planetarium is formed as a session group, consisting entirely of members of bands from the Planet Child label.
V. MAR / G. RIN / G. Mashiro Wataame (ゎたぁめ真白) / B. Hisa (琥亞) / D. MUSASHI (ムサシ)
Gt. ゎたぁめ真白 leaves and planetarium go on a hiatus.
planetarium resume activities and become an official band.
V. MAR / G. RIN / B. Hisa (琥亞) / D. MUSASHI (ムサシ)
Key. Yuno joins.
V. MAR / G. RIN / B. Hisa (琥亞) / D. MUSASHI (ムサシ) / K. Yuno
planetarium officially disbands
planetarium was a visual kei band. They were active from 2009 to 2016 and are now disbanded.