Cometary Activity at 25.7 AU: Hale-Bopp 11 Years after Perihelion

@article{Szabo2008CometaryAA,
  title={Cometary Activity at 25.7 AU: Hale-Bopp 11 Years after Perihelion},
  author={G. Szab́o and L. Kiss and K. S'arneczky},
  journal={The Astrophysical Journal},
  year={2008},
  volume={677}
}
  • G. Szab́o, L. Kiss, K. S'arneczky
  • Published 2008
  • Physics
  • The Astrophysical Journal
  • Eleven years after its perihelion, comet C/1995 O1 (Hale-Bopp) is still active. Between 2007 October 20 and 22, we detected a diffuse coma of 180 ? 103 km in diameter with a slight elongation toward the north-south direction. The integrated brightness was 20.04 mag in RC, implying -->Af? = 300 m and albedo ? dust surface -->aRC = 4300 km2. The coma was relatively red at -->V ? R = 0.66 mag, which is consistent with that of the dust in other comets. The observed properties and the overall fading… CONTINUE READING

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