Note Brevi

Il Nuovo Cimento C

, Volume 10, Issue 5, pp 587-591

First online:

Debris from comet Halley, comet's mass loss and age

  • G. CevolaniAffiliated withIstituto FISBAT, CNR
  • , G. BortolottiAffiliated withIstituto FISBAT, CNR
  • , A. HajdukAffiliated withAstronomical Institute, Slovak Academy of Sciences

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Large particles released from the nucleus of comet Halley, but undetected directly by space probes, seem to affect decisively the mass loss and mass determination of the comet, and consequently its aging. Simultaneous radar meteor observations in 1985–86 at the approaches of the comet emphasize the relatively larger proportion of long-duration echoes with respect to previous years.

PACS. 94.60

Interplanetary space