Bright Halo Crater (Impact)

  • Henrik Hargitai
Living reference work entry


Halo around fresh impact craters displaying brighter optical albedo, higher radar backscatter, and distinctive thermal properties relative to their surroundings.



Optical and radar-bright halo surrounding fresh craters; often occurring with bright crater rays (Pieters et al. 1985) (Fig. 1). In some cases, a dark collar also is seen adjacent to crater ( Dark Halo Crater; impact, optical). Most optically bright fresh craters also have a radar-bright ring (Fig. 2); however, the reverse is not true (Thomson et al. 2013).


Impact Crater Dark Halo Radar Backscatter Secondary Crater Ejecta Blanket 
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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Planetary Science Research GroupEötvös Loránd University, Institute of Geography and Earth SciencesBudapestHungary