mirrored file at http://SaturnianCosmology.Org/ For complete access to all the files of this collection see http://SaturnianCosmology.org/search.php ========================================================== ___________________________________ [5][Montage of Saturn and some of its satellites] _________________________________________________________________ Bulk parameters Mass Radius Mean density Visu al geometric albedo (10^20 kg) (km) (kg/m^3) Major Satellites Mimas (SI) 0.375 209 x 196 x 191 1140 0.5 Enceladus (SII) 0.65 256 x 247 x 245 1000 1.0 Tethys (SIII) 6.27 536 x 528 x 526 1000 0.9 Dione (SIV) 11.0 560 1500 0.7 Rhea (SV) 23.1 764 1240 0.7 Titan (SVI) 1,345.5 2,575 1881 0.22 Hyperion (SVII) 0.2 185 x 140 x 113 1500 0.3 Iapetus (SVIII) 15.9 718 1020 0.05 / 0.5 Lesser Satellites Pan (SXVIII, S/1981 S13) 0.00003 10 630 0.5 Atlas (SXV, S/1980 S28) 0.0001 18.5 x 17.2 x 13.5 630 0.8 Prometheus (SXVI, S/1980 S27) 0.0033 74 x 50 x 34 630 0.5 Pandora (SXVII, S/1980 S26) 0.0020 55 x 44 x 31 630 0.7 Epimetheus (SXI, S/1980 S3) 0.0054 69 x 55 x 55 600 0.8 Janus (SX, S/1980 S1) 0.0192 97 x 95 x 77 650 0.9 Calypso (SXIV, S/1980 S25) 0.00004 15 x 8 x 8 1000 1.0 Telesto (SXIII, S/1980 S13) 0.00007 15 x 12.5 x 7.5 1000 1.0 Helene (SXII, S/1980 S6) 0.0003 18 x 16 x 15 1500 0.7 Phoebe (SIX) 0.072 115 x 110 x 105 1300 0.08 Newly Discovered Satellites Ymir (SXIX, S/2000 S 1) ~8 0.06 Paaliaq (SXX, S/2000 S 2) ~10 0.06 Siarnaq (SXXIX, S/2000 S 3) ~16 0.06 Tarvos (SXXI, S/2000 S 4) ~7 0.06 Kiviuq (SXXIV, S/2000 S 5) ~7 0.06 Ijiraq (SXXII, S/2000 S 6) ~5 0.06 Thrym (SXXX, S/2000 S 7) ~3 0.06 Skadi (SXXVII, S/2000 S 8) ~3 0.06 Mundilfari (SXXV, S/2000 S 9) ~3 0.06 Erriapo (SXXVIII, S/2000 S 10) ~4 0.06 Albiorix (SXXVI, S/2000 S 11) ~13 0.06 Suttung (SXXIII, S/2000 S 12) ~3 0.06 S/2003 S 1 ~3 0.06 _________________________________________________________________ Orbital parameters Orbital Rota tion Semimajor axis Period* Per iod Inclination Eccentricity (10^3 km) (Saturnian Radii) (days) (d ays) (degrees) Major Satellites Mimas (SI) 185.52 3.0783 0.9424218 S 1.53 0.0202 Enceladus (SII) 238.02 3.9494 1.370218 S 0.00 0.0045 Tethys (SIII) 294.66 4.8892 1.887802 S 1.86 0.0000 Dione (SIV) 377.40 6.2620 2.736915 S 0.02 0.0022 Rhea (SV) 527.04 8.7449 4.517500 S 0.35 0.0010 Titan (SVI) 1,221.83 20.273 15.945421 0.33 0.0292 Hyperion (SVII) 1,481.1 24.575 21.276609 C 0.43 0.1042 Iapetus (SVIII) 3,561.3 59.091 79.330183 S 14.72 0.0283 Lesser Satellites Pan (SXVIII, S/1981 S13) 133.583 2.2165 0.5750 0.0 0.000 Atlas (SXV, S/1980 S28) 137.670 2.2820 0.6019 0.3 0.000 Prometheus (SXVI, S/1980 S27) 139.353 2.2843 0.6130 0.0 0.0024 Pandora (SXVII, S/1980 S26) 141.700 2.3512 0.6285 0.0 0.0042 Epimetheus (SXI, S/1980 S3) 151.422 2.5099 0.6942 S 0.34 0.009 Janus (SX, S/1980 S1) 151.472 2.5125 0.6945 S 0.14 0.007 Calypso (SXIV, S/1980 S25) 294.66 4.8892 1.8878 ~0 ~0 Telesto (SXIII, S/1980 S13) 294.66 4.8892 1.8878 ~0 ~0 Helene (SXII, S/1980 S6) 377.40 6.262 2.7369 0.0 0.005 Phoebe (SIX) 12,952 214.91 550.48R 0. 4 175.3 0.1633 Newly Discovered Satellites Ymir (SXIX, S/2000 S 1) 23,100 383. 1312R 173.1 0.33 Paaliaq (SXX, S/2000 S 2) 15,200 252. 687 47.2 0.36 Siarnaq (SXXIX, S/2000 S 3) 18,160 301. 893 45.6 0.29 Tarvos (SXXI, S/2000 S 4) 18,240 303. 926 34.9 0.54 Kiviuq (SXXIV, S/2000 S 5) 11,370 189. 449 48.7 0.33 Ijiraq (SXXII, S/2000 S 6) 11,440 190. 451 49.1 0.32 Thrym (SXXX, S/2000 S 7) 20,470 340. 1089R 175.0 0.47 Skadi (SXXVII, S/2000 S 8) 15,650 260. 729R 148.5 0.27 Mundilfari (SXXV, S/2000 S 9) 18,710 310. 951R 169.4 0.21 Erriapo (SXXVIII, S/2000 S 10) 17,610 292. 871 33.5 0.47 Albiorix (SXXVI, S/2000 S 11) 16,390 272. 738 34.0 0.48 Suttung (SXXIII, S/2000 S 12) 19,470 323. 1017R 175.8 0.11 S/2003 S 1 18,720 311. 956R 134.6 0.35 *R indicates retrograde motion S indicates synchronous rotation - the rotation period is the same as the orbital period C indicates chaotic rotation [6]Discovery of two new moons of Saturn announced - IAU circulars [7]7545 and [8]7548 [9]Discovery of four new moons of Saturn announced - IAU circulars [10]7538 and [11]7539 [12]Discovery of two new moons of Saturn announced - IAU circular 7521 [13]Discovery of four new moons of Saturn announced - Cornell University Press Release [14]Ring plane crossings yield no new satellite discoveries _________________________________________________________________ [15]Saturn Fact Sheet [16]Saturn Home Page [17]Directory to other Planetary Fact Sheets [18]NSSDC Planetary Home Page _________________________________________________________________ [NASA Logo] Author/Curator: Dr. David R. Williams, [19]dwilliam at nssdc.gsfc.nasa.gov NSSDC, Mail Code 633 NASA Goddard Space Flight Center Greenbelt, MD 20771 +1-301-286-1258 _________________________________________________________________ [an error occurred while processing this directive] V1.0, 13 July 1995 Last Updated: 06 July 2004, DRW References 1. http://www.google.com/help/features.html#cached 2. http://nssdc.gsfc.nasa.gov/planetary/factsheet/saturniansatfact.html 3. http://nssdc.gsfc.nasa.gov/planetary/factsheet/saturniansatfact.html 4. http://64.233.167.104/search?q=cache:jGK28aX_mQgJ:nssdc.gsfc.nasa.gov/planetary/factsheet/saturniansatfact.html+saturn+%2Bmoons&hl=en&lr=lang_en&ie=UTF-8&strip=1 5. http://nssdc.gsfc.nasa.gov/planetary/image/saturn_sats.jpg 6. http://www.obs-nice.fr/saturn/ 7. http://cfa-www.harvard.edu/iauc/07500/07545.html 8. http://cfa-www.harvard.edu/iauc/07500/07548.html 9. http://www.obs-nice.fr/saturn/ 10. http://cfa-www.harvard.edu/iauc/07500/07539.html 11. http://cfa-www.harvard.edu/iauc/07500/07539.html 12. http://cfa-www.harvard.edu/iauc/07500/07521.html 13. http://www.news.cornell.edu/releases/Oct00/Saturn.moons.deb.html 14. http://nssdc.gsfc.nasa.gov/planetary/satmoons_pr.html 15. http://nssdc.gsfc.nasa.gov/planetary/factsheet/saturnfact.html 16. http://nssdc.gsfc.nasa.gov/planetary/planets/saturnpage.html 17. http://nssdc.gsfc.nasa.gov/planetary/planetfact.html 18. http://nssdc.gsfc.nasa.gov/planetary/planetary_home.html 19. mailto:dwilliam at nssdc.gsfc.nasa.gov