IHW COMET HALLEY PHOTOMETRIC MAGNITUDES, V2.0

This data set presents the photometric magnitude measurements of 1P/Halley submitted to the International Halley Watch (IHW) Photometry and Polarimetry Network (PPN). Both broadband and narrowband magnitudes are included, with filter parameters for each measurement. In this second version, the FITS tables have been converted to flat ASCII, the PDS labels rewritten, a table combing all the measurements into a single, chronological set has been added, and known errata have been corrected.