This dataset presents a collection of 2334 published and 319 unpublished results in cometary polarimetry. The database contains 2653 measurements of linear and circular polarization for 65 comets since 1940. The narrow-band and broad-band measurements within the spectral region 0.3-3.5 micron are presented. The ranges of phase angles, helio- and geocentric distances of comets are 0.4-122 deg, 0.6-4.8 AU and 0.03-4.9 AU, respectively. We have compiled 64 references to the published papers and some unpublished sources. The data are presented in a tabular format (ASCII code). The database can be used as the observational basis for detailed theoretical modeling, interpretation of the phase-angle and spectral dependence of polarization, classification of comets, and for selecting future space-mission targets.

The database presented here is comprised entirely of observations made utilizing conventional photoelectric photometers and narrowband filters isolating 5 emission species (OH, NH, CN, C3 and C2) and continua. This work was initiated by A'Hearn and Millis in 1976 and includes 2020 observations of 85 comets obtained over 429 nights through the end of 1992. The total number of observations, however, is not evenly distributed over the 85 comets. The median number of observations for a comet is 6, with only a single observation obtained for 14 comets while there were 820 observations of P/Halley. The majority of observations were obtained at either Lowell Observatory or Perth Observatory, however four other observatories were used including an extensive campaign on comet P/Halley from the Cerro Tololo Interamerican Observatory (CTIO). In this archive, results for a subset of 68 comets are presented while the results for P/Halley from this study are archived in the IHW archive.

The database presented here is comprised entirely of observations made utilizing conventional photoelectric photometers and narrowband filters isolating 5 emission species (OH, NH, CN, C3 and C2) and continua. This work was initiated by A'Hearn and Millis in 1976 and includes 2020 observations of 85 comets obtained over 429 nights through the end of 1992. The total number of observations, however, is not evenly distributed over the 85 comets. The median number of observations for a comet is 6, with only a single observation obtained for 14 comets while there were 820 observations of P/Halley. The majority of observations were obtained at either Lowell Observatory or Perth Observatory, however four other observatories were used including an extensive campaign on comet P/Halley from the Cerro Tololo Interamerican Observatory (CTIO). In this archive, results for a subset of 68 comets are presented while the results for P/Halley from this study are archived in the IHW archive.

This data set presents polarimetric observations of comet 1P/Halley reported as normalized Stokes parameters. All data were contributed by a single observer, A. Dolphus, working at the European Southern Observatory. This revised version of the data set includes updated documentation and data formats.

This data set presents polarimetric observations of comet 1P/Halley reported as normalized Stokes parameters. All data were contributed by a single observer, A. Dolphus, working at the European Southern Observatory. This revised version of the data set includes updated documentation and data formats.

This data set contains the polarimetric results reported to the International Halley Watch (IHW) Photometry and Polarimetry Network (PPN) by the various participating observers. Only linear polarizations are reported. Both standard and non-standard broadband and narrowband filters were employed. A total of 752 observations are included spanning the period 13 September 1985 to 17 May 1986.

This data set contains the polarimetric results reported to the International Halley Watch (IHW) Photometry and Polarimetry Network (PPN) by the various participating observers. Only linear polarizations are reported. Both standard and non-standard broadband and narrowband filters were employed. A total of 752 observations are included spanning the period 13 September 1985 to 17 May 1986.

Atlas of cometary spectral lines from high resolution measurements of comet deVico.

Atlas of cometary spectral lines from high resolution measurements of comet deVico.

The INFRARED PHOTOMETRY Network contains 2204 observations of Comet Halley spanning dates from 1984 Sep 14 through 1988 Apr 08.