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TITLES OF CIRCULARS
The Variable Star RZ Cephei one figure Henrietta S Leavitt
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absolute magnitude absorption according appears average brighter brightness Catalogue CIRCULAR Class Cloud cluster color column compared comparison computed contains correction corresponding curve dark derived detail determined diameter difference discussion distance distribution Draper eclipse effect error estimates exposures faint fainter Figure four galactic giants given gives Harvard images included increase indicated intensity involved ionization irregular JOSIAH QUINCY known less light limit lines luminosity Magellanic Cloud material maximum mean measures Moon Name nebulous group Nebulous star nova objects observations Observatory obtained parallax period phase photographic magnitudes plates position present probably proper motion range reduced referred regions represented scale seems shadow shown spectra spectral class spectrum standard stellar Table taken telescope temperature values variables variation velocities visible visual Wilson