TY - JOUR T1 - Fifth and Sixth Catalogues of the Comparative Brightness of the Stars-In Continuation of Those Printed in the 'Philosophical Transactions of the Royal Society' for 1796-99 JF - Philosophical Transactions of the Royal Society of London. Series A, Containing Papers of a Math. or Phys. Character (1896-1934) VL - 205 SP - 399 EP - 447 PY - 1906/01/01/ UR - http://dx.doi.org/10.1098/rsta.1906.0012 M3 - doi:10.1098/rsta.1906.0012 AU - Herschel, D. AU - Herschel, J. ER -