Galileo Multispectral Imaging of the North Polar and Eastern Limb Regions of the Moon

Creators: Belton, M. J. S.; Greeley, R.; Greenberg, R.; McEwen, A.; Klaasen, K. P.; Head, J. W., III; Pieters, C; Neukum, G.; Chapman, C. R.; Geissler, P.; Heffernan, C.; Breneman, H.; Anger, C.; Carr, M. H.; Davies, M. E.; Fanale, F. P.; Gierasch, P. J.; Ingersoll, A. P.; Johnson, T. V.; Pilcher, C. B.; Thompson, W. R.; Veverka, J.; Sagan, C.

Abstract

Multispectral images obtained during the Galileo probe's second encounter with the moon reveal the compositional nature of the north polar regions and the northeastern limb. Mare deposits in these regions are found to be primarily low to medium titanium lavas and, as on the western limb, show only slight spectral heterogeneity. The northern light plains are found to have the spectral characteristics of highlands materials, show little evidence for the presence of cryptomaria, and were most likely emplaced by impact processes regardless of their age.

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© 1994 American Association for the Advancement of Science. Received 17 September 1993; accepted 24 March 1994 We thank the Galileo Project Office, the National Aeronautics and Space Administration (NASA), and numerous individuals who participated in the mission planning and initial data analysis, including C. Avis, T. Becker, L. Bolef, N. Bridges, C. Cunningham, E. DeJong, K. Edwards, E. Fischer, R. Garstang, A. Harch, S. Kadel, R. Kirk, J. Moersch, J. Plutchak, M. Robinson, R. Sullivan, W. Sullivan, J. Sunshine, S. Vail, L. Wainio, D. Williams, and J. Yoshimizu. The Galileo data set is available on CD-ROM through the NASA Planetary Data System. The National Optical Astronomy Observatories are operated by AURA, Inc., under a cooperative agreement with the National Science Foundation.

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© 1994 American Association for the Advancement of Science. Received 17 September 1993; accepted 24 March 1994 We thank the Galileo Project Office, the National Aeronautics and Space Administration (NASA), and numerous individuals who participated in the mission planning and initial data analysis, including C. Avis, T. Becker, L. Bolef, N. Bridges, C. Cunningham, E. DeJong, K. Edwards, E. Fischer, R. Garstang, A. Harch, S. Kadel, R. Kirk, J. Moersch, J. Plutchak, M. Robinson, R. Sullivan, W. Sullivan, J. Sunshine, S. Vail, L. Wainio, D. Williams, and J. Yoshimizu. The Galileo data set is available on CD-ROM through the NASA Planetary Data System. The National Optical Astronomy Observatories are operated by AURA, Inc., under a cooperative agreement with the National Science Foundation.