Périhélie: 2,748,938,461 km, 18.37551863 AE
Aphélie: 3,004,419,704 km, 20.08330526 AE
Demi-grand axe: 2,876,679,082 km, 19.22941195 AE
Période de révolution: 30,799.095 jours, 84.323326 années
Période synodique: 369.66 jours
Vitesse orbitale moyenne: 6.81 km/s
Anomalie moyenne: 142.955717°
Inclinaison: 0.772 556°
Longitude du nœud ascendant: 73.989821°
Argument du périhélie: 96.541 318°
Satellites/Lunes: 27 (Cordelia, Ophelia, Bianca, Cressida, Desdemona, Juliet, Portia, Rosalind, Mab, Belinda, Perdita, Puck, Cupid, Miranda, Francisco, Ariel, Umbriel, Titania, Oberon, Caliban, Stephano, Trinculo, Sycorax, Margaret, Prospero, Setebos, Ferdinand)
Rayon équatorial: 25,559 km (4.007 x Terre)
Aplatissement: 0.0229 ± 0.0008
Superficie: 8.1156×109 km2 (15.91 x Terre)
Volume: 6.833×1013 km3 (63.086 x Terre)
Masse: 8.6823×1025 kg (14.536 x Terre)
Masse volumique moyenne: 1.27 g/cm3
Gravité à la surface: 8.69 m/s2
Vitesse de libération: 21.3 km/s
Sidereal rotation period: -0.71833 day Earth days, 17 h 14 min 24 s Earth hours
Inclinaison de l’axe: 97.77°
Albédo moyen: 0.51
Température de surface: 57 K, -216 °C, -357 °F
Magnitude apparente: 5.9 to 5.32
Diamètre angulaire: 3.3"–4.1"
Composition: 82.5% Hydrogen (H2)
2.3% Methane (CH4)
148ppm Hydrogen Deuteride (HD)
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NASA Breaking News
NASA Invests in Concept Development for Missions to Comet, Saturn Moon Titan
NASA has selected two finalist concepts for a robotic mission planned to launch in the mid-2020s: a comet sample return mission and a drone-like rotorcraft that would explore potential landing sites on Saturn’s largest moon, Titan.
NASA to Name Finalists for Future Solar System Mission
NASA will announce finalist concepts for a future robotic mission to explore the solar system during a media teleconference at 2 p.m. EST Wednesday, Dec. 20.
NASA Awards Contract for Aircraft Operations Support
NASA has awarded the Aircraft Maintenance, Logistics, Integration, Configuration Management and Engineering (ALICE) contract to Yulista Tactical Services, LLC in Huntsville, Alabama.
Nominations Process Opens for National Space Council Users’ Advisory Group
Public nominations now are being accepted from U.S. citizens and organizations for potential membership on an advisory group that will represent the perspectives, interests and expertise of industry and other non-federal entities to the National Space Council.
Three New Crew Members on Voyage to International Space Station
Three crew members representing the United States, Russia and Japan are on their way to the International Space Station after launching from the Baikonur Cosmodrome in Kazakhstan at 2:21 a.m. EST Sunday (1:21 p.m. Baikonur time).
NASA Sends New Research to Space Station Aboard SpaceX Resupply Mission
An experiment in space manufacturing and an enhanced study of solar energy are among the research currently heading to the International Space Station following Friday’s launch of a SpaceX Dragon spacecraft at 10:36 a.m. EST.
Artificial Intelligence, NASA Data Used to Discover Eighth Planet Circling Distant Star
Our solar system now is tied for most number of planets around a single star, with the recent discovery of an eighth planet circling Kepler-90, a Sun-like star 2,545 light years from Earth. The planet was discovered in data from NASA’s Kepler Space Telescope.
NASA Astronaut Bresnik and Crewmates Return to Earth From Space Station
Three crew members who have been living and working aboard the International Space Station returned to Earth on Thursday, landing in Kazakhstan after opening a new chapter in the scientific capability of humanity’s premier microgravity laboratory.
NASA Television Updates Broadcast Schedule for Cargo Resupply Mission
NASA commercial cargo provider SpaceX now is targeting no earlier than 10:36 a.m. EST Friday, Dec. 15, for its 13th commercial resupply services mission to the International Space Station.
NASA Awards Contract for Safety, Mission Assurance Support
NASA has awarded the Safety and Mission Assurance Support Services III (SMASS III) contract to A-P-T Research, Inc. of Huntsville, Alabama, for a broad range of services at the agency’s Headquarters in Washington, Kennedy Space Center in Florida, and various sites supported by Kennedy’s programs and projects.