| The date is based on the oldest found to date in , and is thought to be the date of the formation of the first solid material in the collapsing nebula | Ree; Thibault Lejeune; Sydney Barnes 2001 |
|---|---|
| The mass of the Solar System excluding the Sun, Jupiter and Saturn can be determined by adding together all the calculated masses for its largest objects and using rough calculations for the masses of the Oort cloud estimated at roughly 3 Earth masses , the Kuiper Belt estimated at roughly 0 | Supernovae and Nucleosynthesis First edition ed |
Quarterly Journal of the Royal Astronomical Society.
| Journey from the Center of the Sun | Levison, Martin J Duncan 1997 |
|---|---|
| "A Geometric Determination of the Distance to the Galactic Center" | and the Cassini Imaging Team July 18, 2007 |
, "", 2002 Journal of Geophysical Research Space Physics , Volume 107, Issue A7, pp.