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

The NEAR NUCLEUS STUDIES Network contains 2204 observations of Comet Halley spanning dates from 11982 Oct 16 through 1989 Apr 12.

The NEAR NUCLEUS STUDIES Network contains 2204 observations of Comet Halley spanning dates from 11982 Oct 16 through 1989 Apr 12.

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 the photometry of comet 1P/Halley collected by the International Halley Watch (IHW) Infrared Studies Network (IRSN) over the period September 1984 to April 1988. Version 2 includes data submitted after the initial archive generation.

This data set presents the photometry of comet 1P/Halley collected by the International Halley Watch (IHW) Infrared Studies Network (IRSN) over the period September 1984 to April 1988. Version 2 includes data submitted after the initial archive generation.

This data set presents the infrared spectroscopy of Comet 1P/Halley archived with the Infrared Studies Network (IRSN) of the International Halley Watch (IHW). 59 spectra were obtained over the period 1985-10-29 to 1986-05-24 at a number of observatories using various instrumental systems.

This data set presents the infrared spectroscopy of Comet 1P/Halley archived with the Infrared Studies Network (IRSN) of the International Halley Watch (IHW). 59 spectra were obtained over the period 1985-10-29 to 1986-05-24 at a number of observatories using various instrumental systems.

This data set contains the infrared images collected and archived by the International Halley Watch (IHW) Infrared Studies Network (IRSN). Raw and calibrated data are included, as well as calibration observations of standard stars. These data have been reformatted and the accompanying documentation updated in this revised version.