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Albert Grau Gatell
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Masificacion v2
by
Albert Grau Gatell
Asteroides
by
Albert Grau Gatell
Objectes del cel
by
Albert Grau Gatell
Exobiologia
by
Albert Grau Gatell
Evolución estelar
by
Albert Grau Gatell
Dos esferas
by
Albert Grau Gatell
Sessió hivern
by
Albert Grau Gatell
T7i11 duesesferessol
by
Albert Grau Gatell
T5i6 coordenades
by
Albert Grau Gatell
T4 magnituds i classificacions
by
Albert Grau Gatell
T3 distàncies.posició en l'univers
by
Albert Grau Gatell
T2 objectes del cel
by
Albert Grau Gatell
Estels estiusol(8)
by
Albert Grau Gatell
T8 constel·lacions
by
Albert Grau Gatell
Sessióprimavera
by
Albert Grau Gatell
