(d) Very faint. (e) Satellite diffused (f) Very diffused. On fringe of secondary spectrum. Royal Observatory, Greenwich: 1907 November 7. Observations of Minor Planets, from photographs taken with the 30-in. Reflector of the Thompson Equatorial at the Royal Observatory, Greenwich, during the year 1906. (Communicated by the Astronomer Royal.) The following positions of minor planets were obtained from photographs taken with the 30-in. reflector during the year 1906. The plates were measured with the astrographic micrometer. Six reference stars were, as a rule, measured with the planet, their positions being derived when possible from the Catalogues of the Astronomische Gesellschaft, or from the Radcliffe Catalogue, 1890. The positions given are not corrected for Parallax. Log Parallax Correction = log Parallax Factor-log A. |