Contents. planet: 7 - Uranus satellites: U3-Titania : 33, U4-Oberon : 25 total number: 58 type: relative dates: 1908-1910 observatory: 786 - U.S. Naval Obs., Washington Reference. Hall Asaph Jr. (1911) Observations and orbit-elements of Oberon and Titania, satellites of Uranus Astronomical Journal. V. 27. N. 627. P. 17-19. 1911AJ_____27___17H Informations. relative to: planet reference frame: apparent centre of frame: topocentre epoch of equinox: date time scale: Paris Mean Time, see comment! reduction: no information coordinates: position angle and separation diff. refraction: not excluded receptor: micrometric telescope: Refractor, D=26 inch observers: Hall A.Jr. data included in standard data file: no Comments. The observation-times as given have been corrected for aberration-time Format. 1. Observed satellite number, obs. 2. Year of the moment of observation 3. Month of the moment of observation 4. Day of the moment of observation 5. Hour of the observation 6. Minute of the observation 7. Seconde of the observation 8. Degrees of P (position angle) 9. Arcmin of P (position angle) 10. S (separation) in arcsec ------------------------------------------- sat Year Paris.M.T. obs month h m s P S day deg. ' arcsec -------------------------------------------