Plutoids

The two known and named plutoids are Pluto and Eris. Plutoids are celestial bodies in orbit around the Sun at a distance greater than that of Neptune that have sufficient mass for their self-gravity to overcome rigid body forces so that they assume a hydrostatic equilibrium (near-spherical) shape, and that have not cleared the neighbourhood around their orbit. Satellites of plutoids are not plutoids themselves, even if they are massive enough that their shape is dictated by self-gravity.

 

Credit:

IAU, NASA/ESA Hubble Space Telescope, H. Weaver (JHU/APL), A. Stern (SwRI), the HST Pluto Companion Search Team and M. Brown.

About the Image

Id:
iau0804a
Release date:
11 June 2008, 15:30
Related releases:
iau0804
Size:
1368 x 728 px

About the Object

Type:
• X - Press Release Images

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197.7 KB
Screensize JPEG
102.0 KB

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