The albedo and diameter of 1862 Apollo

L. A. Lebofsky, G. J. Veeder, G. H. Rieke, M. J. Lebofsky, D. L. Matson, C. Kowal, C. G. Wynn-Williams, E. E. Becklin

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


We report infrared thermal emission measurements of 1862 Apollo, which is the type example of an Earth-crossing asteroid. We derive a geometric albedo of 0.21 ± 0.02 which is within the albedo range of the S class of asteroids. The effective diameter was observed to vary with rotation from 1.2 ± 0.1 to 1.5 ± 0.1 km.

Original languageEnglish (US)
Pages (from-to)335-338
Number of pages4
Issue number2
StatePublished - Nov 1981

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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