Cerca de planetes a 47 Tucanae
Hom esperava trobar-hi 17 planetes "extrasolars" entre les 35.00 estrelles visibles a aquesta imatge, però s'ha trobat cap.
Astronomers Ponder Lack of Planets in Globular Cluster
Credits for Hubble image:
NASA
and Ron Gilliland (
Space Telescope Science Institute
)
Credits for ground-based image: David Malin, © Anglo-Australian Observatory
Nov. 2000
