| I Mimas | II Enceladus | III Tethys | IV Dione | V Rhea | VI Titan | VII Hyperion | VIII Iapetus |
| 12.9 | 11.7 | 10.2 | 10.4 | 9.7 | 8.3 | 14.2 | 10.2 - 11.9 |
This Java applet displays the 8 brightest satellites orbiting Saturn. The view is non-inverted, so East is on the left and West on the right. Any moons which are further out than the extent of the display area are not listed. Iapetus sometimes falls into that category but it can be made visible by using the zoom button. The applet does indicate whether a moon passes in front of or behind the planet. So if a moon is listed at the top but is not visible it must be behind the planet. An ellipse shows the extent of the rings (out to the edge of ring A).
The "Play" button causes the display to be recalculated for steps of 1 hour.
The calculation scheme is given in Jean Meeus: "Astronomical Algorithms", 2nd edition (corrected August 2009), Willmann-Bell Inc. The scheme given in chapter 46 is used, with the accurate VSOP87 method (Chapter 32 and Appendix III) for determining the position of Saturn relative to the Earth. The ring aspect is calculated according to Chapter 45.
Applet written by Graham Relf - see www.grelf.net