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Pan (pan, Greek Πάν) is a moon of |
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| Eccentricity | 0.00021±0.00008 | |||||||||
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| Orbital period | 0.5764 d | |||||||||
| Inclination | 0.007±0.002° (to Saturn's equator) | |||||||||
| Is a satellite of | Saturn | |||||||||
| Physical characteristics | ||||||||||
| Equatorial diameter | 20 km | |||||||||
| Mass | 2.7×1015 kg | |||||||||
| Mean density | 0.6 g/cm3 | |||||||||
| Surface gravity | 0.002 m/s2 | |||||||||
| Rotation period | synchronous | |||||||||
| Axial tilt | zero | |||||||||
| Albedo | 0.5 | |||||||||
| Surface temp [3] The actual semi-major axis is 133,583 km and the mass is 2.7×1015 kg, or 4.7×10−12 of Saturn's mass of 5.688×1026 kg. The moon was later found within 1° of the predicted position. The search was undertaken by considering all Voyager 2 images and using a computer calculation to predict whether the moon would be visible under sufficiently favorable conditions in each one. Every qualifying Voyager 2 image with resolution better than ~50 km/pixel shows Pan clearly. In all, it appears in eleven Voyager 2 images. [4] After the discovery it received a temporary designation S/1981 S 13. It is also designated as Saturn XVIII. There is also an asteroid called 4450 Pan.
References
Links Saturn | Pan | Daphnis | ... Saturn's natural satellites
Pan | Daphnis | Atlas | Prometheus | S/2004 S 6 | S/2004 S 4 | S/2004 S 3 | Pandora | Epimetheus and Janus | Mimas | Methone | Pallene | Enceladus | Telesto, Tethys, and Calypso | Polydeuces, Dione, and Helene | Rhea | Titan | Hyperion | Iapetus | Kiviuq | Ijiraq | Phoebe | Paaliaq | Skathi | Albiorix | S/2004 S 11 | Erriapo | Siarnaq | S/2004 S 13 | Tarvos | Mundilfari | S/2004 S 17 | Narvi | S/2004 S 15 | S/2004 S 10 | Suttungr | S/2004 S 12 | S/2004 S 18 | S/2004 S 9 | S/2004 S 14 | S/2004 S 7 | Thrymr | S/2004 S 16 | Ymir | S/2004 S 8 see also: Rings of Saturn | Cassini-Huygens | Themis
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