Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982aj.....87.1585t&link_type=abstract
Astronomical Journal, vol. 87, Nov. 1982, p. 1585-1592.
Astronomy and Astrophysics
Astronomy
61
Asteroids, Astronomical Photometry, Natural Satellites, Reference Stars, Spectral Reflectance, Stellar Color, Photometers, Photomultiplier Tubes, Solar Spectra, Spectral Bands, Stellar Magnitude, Systems Engineering, Ubv Spectra, Asteroids, Colors, Astronomy, Observations, Photometry, Reflectance, Optical Properties, Spectra, Techniques, Procedure, Planets, Equipment, Satellites, Ultraviolet, Wavelengths, Magnitude
Scientific paper
Compositionally diagnostic information regarding the spectral reflectance of faint asteroids and planetary satellites, obtained using a photometric system, is presented. Standard UBV and range in effective wavelength from 0.34 to 1.04 microns are among the eight broadband filters relative to the study. An InGaAsP photomultiplier of high quantum efficiencies employed for longer wavelengths, allows work to magnitude 17 and fainter when used in conjunction with a 2 m telescope. Magnitudes and color indices with mean uncertainty + or - 0.006 mag for 50 standard stars are presented, and by setting the mean colors of four of these stars to zero, the zero point of the system is established. Sun color implications resulting from the study are U-B = 0.20 + or - 0.02, and B-V = 0.67 + or - 0.02.
Tedesco Edward F.
Tholen David J.
Zellner Ben
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