New moons of Pluto. Hubble Space Telescope (HST) images of Pluto (centre) and its large moon Charon (below and right of Pluto),and two newly discovered moons,S/2005 P2 (right of Pluto) and S/2005 P1 (below and right of P2). The image was taken on 15th February 2006 by the ACS instrument on the HST. These two moons were discovered in May 2005,and this observation was made to confirm their orbits,which fitted very well with predictions. Pluto and Charon orbit some 19,100 kilometres from each other,and are so similar in mass that they orbit a point between them,rather than inside Pluto. P1 and P2 orbit some 65,000km and 50,000km respectively from this point | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Weaver, H. / NASA / ESA / STSCI |
Taille de l’image : | 1890 px × 1890 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |