Strip Photometry of Halley's Comet

Details Strip Photometry of Halley's Comet Strip Photometry of Halley's Comet

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.250a.475d&link_type=abstract

The Exploration of Halley's Comet. Volume 1: Plasma and Gas, Proceedings of the 20th ESLAB Symposium held in Heidelberg, West Ge

Astronomy and Astrophysics

Astronomy

Scientific paper

Post-perihelical photometric observations of comet Halley were performed on 25 nights at the 50 cm reflector of UFRGS by the technique of strip photometry. A slit of dimensions 8arcmin×8arcsec scanned the comet image at a speed of 1arcsec.345 cos δ sec-1, in east-west direction or inversely. For photometry the authors used NASA interference filters C2, C3, CO+, H2O+, λ4845 and λ6840. Calibration used IHW standard stars and scans of field stars. Significant signals were detected for H2O+, C2 and C3. Time evolution of coma is seen from profiles. No color effect was observed from the continuum filters.

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